# Trace: Update Engine for Self-Targeting Counter Effects
Agent: claude-code | Model: Claude Opus 4.6 | Project: mage
---
## User
Caveat: The messages below were generated by the user while running local commands. DO NOT respond to these messages or otherwise consider them in your response unless the user explicitly asks you to.
## User
/clear
clear
## User
## User
Read `docs/work-queue.md` and do the next unchecked batch. For each batch:
1. Read the engine files (`mtg-engine/src/abilities.rs`, `mtg-engine/src/game.rs`) to understand current Effect/StaticEffect variants
2. If the batch has a NOTE about uncertainty, investigate first and update the queue with findings before committing the fix
3. If engine work is needed: add the variant, constructor, and match arm
4. Add a test for any new engine effect (follow the pattern in `game.rs` `mod tests`)
5. Fix all cards listed in the batch (grep to find exact lines, fix across all 4 set files)
6. `cargo check -p mtg-cards && cargo test --lib`
7. Update docs: mark cards in `docs/{fdn,tla,tdm,ecl}-remediation.md`, update `ROADMAP.md`
8. Check off the batch in `docs/work-queue.md` with today's date
9. If you discover new cards that fit the current or a future batch while working, add them to the queue
If a batch turns out to be wrong or more complex than described, update the queue with what you learned and move on to the next one.
## Assistant
I'll start by reading the work queue to understand what's next.
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/docs/work-queue.md"
}
```
## Assistant
**Result** (success):
```
1→# Card Remediation Work Queue
2→
3→This document drives the batch card-fix loop. Each batch groups cards that share a common missing implementation. Work top-to-bottom; check off batches as completed.
4→
5→## Process (for each batch)
6→
7→1. **Read this file** to find the next unchecked batch
8→2. **Read the engine files** (`abilities.rs`, `game.rs`) to understand current state
9→3. **Implement** the engine change (new Effect/StaticEffect variant + match arm), if needed
10→4. **Add a test** for any new engine effect in `game.rs` `mod tests`
11→5. **Fix the cards** listed in the batch (grep to find exact lines)
12→6. **Verify**: `cargo check -p mtg-cards && cargo test --lib`
13→7. **Update docs**: Mark cards fixed in `docs/{set}-remediation.md`, update ROADMAP.md
14→8. **Check off** the batch below and note the date
15→
16→---
17→
18→## Batch 1: LoseLifeOpponents [DONE 2026-02-13]
19→
20→**Engine**: Added `Effect::LoseLifeOpponents { amount }` variant + constructor + match arm + test.
21→
22→**Cards fixed (8):**
23→- [x] FDN: Marauding Blight-Priest, Pulse Tracker, Vampire Spawn, Phyrexian Arena (LoseLife), Vampire Neonate
24→- [x] TDM: Skirmish Rhino
25→- [x] ECL: Champion of the Weird (effect part), Boggart Mischief (dies trigger part)
26→
27→---
28→
29→## Batch 2: Easy swaps — existing typed effects
30→
31→**Engine**: No engine changes needed. These cards use `Custom(...)` or `StaticEffect::Custom(...)` for things that already have typed variants.
32→
33→### 2a: DestroyAll — Day of Judgment
34→- [ ] FDN line ~2417: `Effect::Custom("Destroy all creatures.")` → `Effect::DestroyAll { filter: "creatures".into() }`
35→
36→### 2b: EntersTapped — Diregraf Ghoul
37→- [ ] FDN line ~644: `StaticEffect::Custom("Enters tapped.")` → `StaticEffect::EntersTapped`
38→
39→### 2c: CantBlock (target) — Frenzied Goblin, Skoa Veteran
40→- [ ] FDN line ~1780: `Effect::Custom("Target creature can't block this turn.")` → `Effect::CantBlock`
41→- [ ] ECL line ~431: same pattern
42→- Verify: these cards already have `TargetSpec::OpponentCreature` or similar targeting
43→
44→### 2d: Self -1/-1 counters — ECL blight creatures
45→These use `Effect::Custom("Put N -1/-1 counter(s) on .")` alongside working effects. Replace with `Effect::AddCounters`:
46→- [ ] ECL line ~354,358: Blighted Blackthorn — `Custom("Put two -1/-1 counters on Blighted Blackthorn.")` → `Effect::add_counters("-1/-1", 2)` (appears twice, two abilities)
47→- [ ] ECL line ~1438: Sourbread Auntie — `Custom("Put two -1/-1 counters on Sourbread Auntie.")` → `Effect::add_counters("-1/-1", 2)`
48→- [ ] ECL line ~1467: Sting-Slinger — `Custom("Put a -1/-1 counter on Sting-Slinger.")` → `Effect::add_counters("-1/-1", 1)`
49→- [ ] ECL line ~992: Heirloom Auntie — `Custom("Remove a -1/-1 counter from Heirloom Auntie.")` → `Effect::RemoveCounters { counter_type: "-1/-1", count: 1 }`
50→- **NOTE**: `AddCounters` currently targets via `SelectedTargets`. These are self-targeting — verify the engine handles "add counters to self" when no target is selected, or if it needs the source object ID in targets. May need a small engine tweak (`AddCountersSelf` variant or default-to-source logic).
51→
52→### 2e: Loot (draw then discard) — Jace's Phantasm area card
53→- [ ] FDN line ~6342: `Custom("draw a card, then discard a card")` → `Effect::draw_cards(1), Effect::DiscardCards { count: 1 }`
54→- Check which card this is and verify the trigger/context
55→
56→### 2f: Simple ETB draw — ECL stub card
57→- [ ] ECL line ~3981: `Custom("When this creature enters, draw a card.")` → `Effect::draw_cards(1)`
58→- Check which card this is; it may be a stub with the wrong Custom text
59→
60→---
61→
62→## Batch 3: OpponentDiscards
63→
64→**Engine**: Need `Effect::DiscardOpponents { count }` or `Effect::OpponentDiscards { count }` — similar to `LoseLifeOpponents`. The existing `DiscardCards` targets the controller.
65→
66→**Cards:**
67→- [ ] FDN line ~617: Burglar Rat — ETB `Custom("Each opponent discards a card.")`
68→- [ ] ECL line ~596: Dream Seizer — `Custom("Put a -1/-1 counter on Dream Seizer. Each opponent discards a card.")` → `Effect::add_counters("-1/-1", 1), Effect::opponent_discards(1)` (depends on Batch 2d self-counter fix working)
69→- [ ] FDN line ~5520: (check card) — `Custom("...if an opponent lost life this turn, each opponent discards a card.")` — conditional, may be harder
70→
71→---
72→
73→## Batch 4: Simple token creation — stub cards with full token text
74→
75→**Engine**: `CreateToken` already works and parses P/T + keywords from name. These cards use `Custom(...)` with text that describes standard token creation.
76→
77→**Cards** (grep for `Custom("Create` and `Custom("When this creature enters, create`):
78→- [ ] FDN line ~6199: (card?) — `Custom("create two 3/3 white Knight creature tokens")`
79→- [ ] FDN line ~6005: (card?) — `Custom("Create two 1/1 blue Faerie creature tokens with flying...")`
80→- [ ] FDN line ~5623: (card?) — `Custom("create a Food token")`
81→- [ ] FDN line ~5899: (card?) — `Custom("create a 1/1 green Elf Warrior creature token")` (conditional)
82→- [ ] ECL line ~3704: (card?) — `Custom("create two 1/1 green and white Kithkin creature tokens")`
83→- [ ] ECL line ~3709: (card?) — `Custom("{4}{W}: Create a 1/1 green and white Kithkin creature token")`
84→- **NOTE**: Some of these are inside stubs where the entire ability structure is placeholder. Check if the `Ability::` wrapper is correct (trigger type, costs) before just swapping the effect. Some may need the whole ability rewritten.
85→
86→---
87→
88→## Batch 5: Ward keyword
89→
90→**Engine**: Ward is a triggered ability ("When this becomes the target of a spell or ability an opponent controls, counter it unless that player pays {cost}"). Options:
91→- A) Add `KeywordAbilities::WARD` flag + hardcode Ward {2} behavior in the targeting/stack system
92→- B) Model as a triggered ability with a special `Effect::Ward { cost }`
93→- C) Simpler: Add `StaticEffect::Ward { cost: String }` that the engine recognizes during targeting
94→
95→**Cards (6):**
96→- [ ] TDM line ~347, ~1990, ~3729: three creatures with `StaticEffect::Custom("Ward {2}")`
97→- [ ] TDM line ~4078: `StaticEffect::Custom("Ward -- Discard a card.")`
98→- [ ] ECL line ~2189: `StaticEffect::Custom("Ward {2}")`
99→- [ ] FDN line ~5603: `StaticEffect::Custom("Ward {2}")`
100→
101→---
102→
103→## Batch 6: Enters-tapped-unless (conditional ETB tapped)
104→
105→**Engine**: May need `StaticEffect::EntersTappedUnless { condition }` or similar.
106→
107→**Cards:**
108→- [ ] TDM line ~2110: `StaticEffect::Custom("Enters tapped unless you control Plains or Island.")`
109→- [ ] TDM line ~2153: `StaticEffect::Custom("Enters tapped unless you control Swamp or Mountain.")`
110→
111→---
112→
113→## Batch 7: Mass keyword grant until EOT
114→
115→**Engine**: Need `Effect::GrantKeywordAllUntilEndOfTurn { filter, keyword }` or similar mass-buff effect.
116→
117→**Cards:**
118→- [ ] FDN: Crash Through — `Custom("Creatures you control gain trample until end of turn.")` + DrawCards(1)
119→- [ ] FDN: Overrun — `Custom("Creatures you control get +3/+3 and gain trample until end of turn.")`
120→- [ ] FDN: Make a Stand — `Custom("Creatures you control get +1/+0 and gain indestructible until end of turn.")`
121→- [ ] FDN: Heroic Reinforcements — `Custom(...)` mass +1/+1 and haste
122→- [ ] FDN: Balmor, Battlemage Captain — spell trigger mass +1/+0 and trample
123→
124→---
125→
126→## Batch 8: Fight/Bite mechanic
127→
128→**Engine**: New `Effect::Fight` (mutual damage) and/or `Effect::Bite` (one-way damage based on power).
129→
130→**Cards (~10):**
131→- [ ] FDN: Bite Down
132→- [ ] ECL: multiple fight cards
133→- [ ] TLA: Earth Rumble, others
134→
135→---
136→
137→## Batch 9: Modal spells (Choose one/two)
138→
139→**Engine**: Modal framework — player chooses mode, effects resolve based on mode selection.
140→
141→**Cards (~15+):**
142→- [ ] FDN: Abrade, Boros Charm, Slagstorm, Valorous Stance, Charming Prince
143→- [ ] TDM: multiple
144→- [ ] ECL: multiple
145→
146→---
147→
148→## Batch 10+: Larger systems
149→
150→These require more significant engine work:
151→- Equipment attach/detach (Batch 10)
152→- Planeswalker loyalty (Batch 11)
153→- Token copy (Batch 12)
154→- X-cost spells (Batch 13)
155→- Aura attachment (Batch 14)
156→- Impulse draw / exile-and-play (Batch 15)
157→- Sagas / lore counters (Batch 16)
158→- Set mechanics: Earthbend (TLA), Blight (ECL), Vivid (ECL), Behold (ECL) (Batch 17+)
159→
160→---
161→
162→## How to pick the next batch
163→
164→1. Always do the lowest-numbered unchecked batch first
165→2. If a batch has a NOTE about engine uncertainty, investigate before committing
166→3. After finishing a batch, update this file AND the per-set remediation docs
167→4. Run `cargo test --lib` before and after every batch
168→
```
## Assistant
## Assistant
Batch 2 is next - "Easy swaps — existing typed effects" with sub-batches 2a through 2f. Let me read the engine files and investigate the cards.
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/abilities.rs"
}
```
## Assistant
**Result** (success):
```
1→// Ability framework — activated, triggered, static, spell, and mana abilities.
2→//
3→// In MTG, abilities are the things cards can do. The framework models:
4→// - **SpellAbility**: The ability a spell has while on the stack (resolve effects)
5→// - **ActivatedAbility**: "Cost: Effect" abilities that can be activated by a player
6→// - **TriggeredAbility**: "When/Whenever/At" abilities that trigger from events
7→// - **StaticAbility**: Abilities that generate continuous effects while in play
8→// - **ManaAbility**: Special activated abilities that produce mana (don't use the stack)
9→//
10→// Ported from mage.abilities.*.
11→
12→use crate::constants::{AbilityType, Zone};
13→use crate::events::{EventType, GameEvent};
14→use crate::mana::Mana;
15→use crate::types::{AbilityId, ObjectId};
16→use serde::{Deserialize, Serialize};
17→
18→// ---------------------------------------------------------------------------
19→// Cost types
20→// ---------------------------------------------------------------------------
21→
22→/// A cost that must be paid to activate an ability or cast a spell.
23→#[derive(Clone, Debug, Serialize, Deserialize)]
24→pub enum Cost {
25→ /// Pay mana (e.g. "{2}{B}").
26→ Mana(Mana),
27→ /// Tap this permanent ("{T}").
28→ TapSelf,
29→ /// Untap this permanent ("{Q}").
30→ UntapSelf,
31→ /// Pay life.
32→ PayLife(u32),
33→ /// Sacrifice this permanent.
34→ SacrificeSelf,
35→ /// Sacrifice another permanent (described by text).
36→ SacrificeOther(String),
37→ /// Discard a card.
38→ Discard(u32),
39→ /// Exile a card from hand.
40→ ExileFromHand(u32),
41→ /// Exile a card from graveyard.
42→ ExileFromGraveyard(u32),
43→ /// Remove counters from this permanent.
44→ RemoveCounters(String, u32),
45→ /// Blight N — put N -1/-1 counters on a creature you control.
46→ /// (ECL set-specific mechanic.)
47→ Blight(u32),
48→ /// Reveal a card of a specific type from hand (used by Behold).
49→ RevealFromHand(String),
50→ /// A custom/complex cost (described by text).
51→ Custom(String),
52→}
53→
54→// ---------------------------------------------------------------------------
55→// Effect types
56→// ---------------------------------------------------------------------------
57→
58→/// What an effect does when it resolves. These are the building blocks
59→/// that card implementations compose to create their abilities.
60→///
61→/// Each variant describes a specific game action. Complex cards can chain
62→/// multiple effects. The game engine interprets these to modify the state.
63→#[derive(Clone, Debug, Serialize, Deserialize)]
64→pub enum Effect {
65→ // -- Damage --
66→ /// Deal damage to target creature or player.
67→ DealDamage { amount: u32 },
68→ /// Deal damage to each creature.
69→ DealDamageAll { amount: u32, filter: String },
70→ /// Deal damage to each opponent.
71→ DealDamageOpponents { amount: u32 },
72→
73→ // -- Life --
74→ /// Gain life.
75→ GainLife { amount: u32 },
76→ /// Lose life (target player).
77→ LoseLife { amount: u32 },
78→ /// Each opponent loses life.
79→ LoseLifeOpponents { amount: u32 },
80→ /// Set life total.
81→ SetLife { amount: i32 },
82→
83→ // -- Destroy / Remove --
84→ /// Destroy target permanent.
85→ Destroy,
86→ /// Destroy all permanents matching filter.
87→ DestroyAll { filter: String },
88→ /// Exile target permanent.
89→ Exile,
90→ /// Sacrifice a permanent (owner chooses).
91→ Sacrifice { filter: String },
92→ /// Return target permanent to hand.
93→ Bounce,
94→ /// Return target card from graveyard to hand.
95→ ReturnFromGraveyard,
96→ /// Return target card from graveyard to battlefield.
97→ Reanimate,
98→
99→ // -- Cards --
100→ /// Draw cards.
101→ DrawCards { count: u32 },
102→ /// Discard cards.
103→ DiscardCards { count: u32 },
104→ /// Mill cards (library to graveyard).
105→ Mill { count: u32 },
106→ /// Scry N (look at top N, put any on bottom in any order).
107→ Scry { count: u32 },
108→ /// Search library for a card.
109→ SearchLibrary { filter: String },
110→
111→ // -- Counters --
112→ /// Put counters on target.
113→ AddCounters { counter_type: String, count: u32 },
114→ /// Remove counters from target.
115→ RemoveCounters { counter_type: String, count: u32 },
116→
117→ // -- Tokens --
118→ /// Create token creatures.
119→ CreateToken { token_name: String, count: u32 },
120→ /// Create tokens that enter tapped and attacking, then sacrifice at next end step.
121→ /// (Used by TDM Mobilize mechanic.)
122→ CreateTokenTappedAttacking { token_name: String, count: u32 },
123→
124→ // -- Mana --
125→ /// Add mana to controller's pool.
126→ AddMana { mana: Mana },
127→
128→ // -- Combat --
129→ /// Target creature can't block this turn.
130→ CantBlock,
131→ /// Target creature must block this turn.
132→ MustBlock,
133→ /// Prevent combat damage.
134→ PreventCombatDamage,
135→
136→ // -- Stats --
137→ /// Give +N/+M until end of turn.
138→ BoostUntilEndOfTurn { power: i32, toughness: i32 },
139→ /// Give +N/+M permanently (e.g. from counters, applied differently).
140→ BoostPermanent { power: i32, toughness: i32 },
141→ /// Set power and toughness.
142→ SetPowerToughness { power: i32, toughness: i32 },
143→
144→ // -- Keywords --
145→ /// Grant a keyword ability until end of turn.
146→ GainKeywordUntilEndOfTurn { keyword: String },
147→ /// Grant a keyword ability permanently.
148→ GainKeyword { keyword: String },
149→ /// Remove a keyword ability.
150→ LoseKeyword { keyword: String },
151→
152→ // -- Control --
153→ /// Gain control of target.
154→ GainControl,
155→ /// Gain control of target until end of turn.
156→ GainControlUntilEndOfTurn,
157→
158→ // -- Tap --
159→ /// Tap target permanent.
160→ TapTarget,
161→ /// Untap target permanent.
162→ UntapTarget,
163→
164→ // -- Counter spells --
165→ /// Counter target spell.
166→ CounterSpell,
167→
168→ // -- Protection --
169→ /// Target gains protection from a color/quality until end of turn.
170→ GainProtection { from: String },
171→ /// Target becomes indestructible until end of turn.
172→ Indestructible,
173→ /// Target gains hexproof until end of turn.
174→ Hexproof,
175→
176→ // -- Misc --
177→ /// A custom/complex effect described by text. The game engine or card
178→ /// code handles the specific implementation.
179→ Custom(String),
180→}
181→
182→// ---------------------------------------------------------------------------
183→// Target specification for abilities
184→// ---------------------------------------------------------------------------
185→
186→/// Describes what an ability can target.
187→#[derive(Clone, Debug, Serialize, Deserialize)]
188→pub enum TargetSpec {
189→ /// No targets.
190→ None,
191→ /// Target creature.
192→ Creature,
193→ /// Target creature or player.
194→ CreatureOrPlayer,
195→ /// Target player.
196→ Player,
197→ /// Target permanent.
198→ Permanent,
199→ /// Target permanent matching a filter.
200→ PermanentFiltered(String),
201→ /// Target spell on the stack.
202→ Spell,
203→ /// Target card in a graveyard.
204→ CardInGraveyard,
205→ /// Target card in your graveyard.
206→ CardInYourGraveyard,
207→ /// Multiple targets of the same type.
208→ Multiple { spec: Box, count: usize },
209→ /// Custom targeting (described by text).
210→ Custom(String),
211→}
212→
213→// ---------------------------------------------------------------------------
214→// Ability struct
215→// ---------------------------------------------------------------------------
216→
217→/// A concrete ability instance attached to a card or permanent.
218→///
219→/// This is a data-oriented design: each ability is a struct containing
220→/// its type, costs, effects, targets, and configuration. The game engine
221→/// interprets these to execute game actions.
222→#[derive(Clone, Debug, Serialize, Deserialize)]
223→pub struct Ability {
224→ /// Unique ID for this ability instance.
225→ pub id: AbilityId,
226→ /// The source object (card or permanent) this ability belongs to.
227→ pub source_id: ObjectId,
228→ /// What kind of ability this is.
229→ pub ability_type: AbilityType,
230→ /// Human-readable rules text.
231→ pub rules_text: String,
232→ /// The zone(s) this ability functions from (e.g. battlefield, graveyard).
233→ pub active_zones: Vec,
234→ /// Costs to activate (for activated/mana abilities).
235→ pub costs: Vec,
236→ /// Effects that happen when this ability resolves.
237→ pub effects: Vec,
238→ /// Target requirements.
239→ pub targets: TargetSpec,
240→ /// For triggered abilities: the event type(s) that trigger it.
241→ pub trigger_events: Vec,
242→ /// For triggered abilities: whether the trigger is optional ("may").
243→ pub optional_trigger: bool,
244→ /// For mana abilities: the mana produced.
245→ pub mana_produced: Option,
246→ /// For static abilities: continuous effects applied while in play.
247→ pub static_effects: Vec,
248→}
249→
250→impl Ability {
251→ /// Create a new activated ability.
252→ pub fn activated(
253→ source_id: ObjectId,
254→ rules_text: &str,
255→ costs: Vec,
256→ effects: Vec,
257→ targets: TargetSpec,
258→ ) -> Self {
259→ Ability {
260→ id: AbilityId::new(),
261→ source_id,
262→ ability_type: AbilityType::ActivatedNonMana,
263→ rules_text: rules_text.to_string(),
264→ active_zones: vec![Zone::Battlefield],
265→ costs,
266→ effects,
267→ targets,
268→ trigger_events: vec![],
269→ optional_trigger: false,
270→ mana_produced: None,
271→ static_effects: vec![],
272→ }
273→ }
274→
275→ /// Create a new triggered ability.
276→ pub fn triggered(
277→ source_id: ObjectId,
278→ rules_text: &str,
279→ trigger_events: Vec,
280→ effects: Vec,
281→ targets: TargetSpec,
282→ ) -> Self {
283→ Ability {
284→ id: AbilityId::new(),
285→ source_id,
286→ ability_type: AbilityType::TriggeredNonMana,
287→ rules_text: rules_text.to_string(),
288→ active_zones: vec![Zone::Battlefield],
289→ costs: vec![],
290→ effects,
291→ targets,
292→ trigger_events,
293→ optional_trigger: false,
294→ mana_produced: None,
295→ static_effects: vec![],
296→ }
297→ }
298→
299→ /// Create a new static ability.
300→ pub fn static_ability(
301→ source_id: ObjectId,
302→ rules_text: &str,
303→ static_effects: Vec,
304→ ) -> Self {
305→ Ability {
306→ id: AbilityId::new(),
307→ source_id,
308→ ability_type: AbilityType::Static,
309→ rules_text: rules_text.to_string(),
310→ active_zones: vec![Zone::Battlefield],
311→ costs: vec![],
312→ effects: vec![],
313→ targets: TargetSpec::None,
314→ trigger_events: vec![],
315→ optional_trigger: false,
316→ mana_produced: None,
317→ static_effects,
318→ }
319→ }
320→
321→ /// Create a mana ability (tap for mana).
322→ pub fn mana_ability(source_id: ObjectId, rules_text: &str, mana: Mana) -> Self {
323→ Ability {
324→ id: AbilityId::new(),
325→ source_id,
326→ ability_type: AbilityType::ActivatedMana,
327→ rules_text: rules_text.to_string(),
328→ active_zones: vec![Zone::Battlefield],
329→ costs: vec![Cost::TapSelf],
330→ effects: vec![Effect::AddMana { mana }],
331→ targets: TargetSpec::None,
332→ trigger_events: vec![],
333→ optional_trigger: false,
334→ mana_produced: Some(mana),
335→ static_effects: vec![],
336→ }
337→ }
338→
339→ /// Create a spell ability (the ability a spell has on the stack).
340→ pub fn spell(source_id: ObjectId, effects: Vec, targets: TargetSpec) -> Self {
341→ Ability {
342→ id: AbilityId::new(),
343→ source_id,
344→ ability_type: AbilityType::Spell,
345→ rules_text: String::new(),
346→ active_zones: vec![Zone::Stack],
347→ costs: vec![], // mana cost is on the card, not the ability
348→ effects,
349→ targets,
350→ trigger_events: vec![],
351→ optional_trigger: false,
352→ mana_produced: None,
353→ static_effects: vec![],
354→ }
355→ }
356→
357→ /// Check if this ability is a mana ability.
358→ pub fn is_mana_ability(&self) -> bool {
359→ self.ability_type == AbilityType::ActivatedMana
360→ }
361→
362→ /// Check if this ability uses the stack.
363→ pub fn uses_stack(&self) -> bool {
364→ !self.is_mana_ability()
365→ && self.ability_type != AbilityType::Static
366→ }
367→
368→ /// Check if a triggered ability should trigger from an event.
369→ pub fn should_trigger(&self, event: &GameEvent) -> bool {
370→ if self.ability_type != AbilityType::TriggeredNonMana {
371→ return false;
372→ }
373→ self.trigger_events.contains(&event.event_type)
374→ }
375→
376→ /// Check if an activated ability can be activated in the given zone.
377→ pub fn can_activate_in_zone(&self, zone: Zone) -> bool {
378→ self.active_zones.contains(&zone)
379→ }
380→
381→ /// Make this a "may" trigger (optional).
382→ pub fn set_optional(mut self) -> Self {
383→ self.optional_trigger = true;
384→ self
385→ }
386→
387→ /// Set the active zones for this ability.
388→ pub fn in_zones(mut self, zones: Vec) -> Self {
389→ self.active_zones = zones;
390→ self
391→ }
392→
393→ /// Set the rules text.
394→ pub fn with_rules_text(mut self, text: &str) -> Self {
395→ self.rules_text = text.to_string();
396→ self
397→ }
398→}
399→
400→// ---------------------------------------------------------------------------
401→// Common triggered ability builders
402→// ---------------------------------------------------------------------------
403→
404→impl Ability {
405→ /// "When ~ enters the battlefield, [effect]."
406→ pub fn enters_battlefield_triggered(
407→ source_id: ObjectId,
408→ rules_text: &str,
409→ effects: Vec,
410→ targets: TargetSpec,
411→ ) -> Self {
412→ Ability::triggered(
413→ source_id,
414→ rules_text,
415→ vec![EventType::EnteredTheBattlefield],
416→ effects,
417→ targets,
418→ )
419→ }
420→
421→ /// "When ~ dies, [effect]."
422→ pub fn dies_triggered(
423→ source_id: ObjectId,
424→ rules_text: &str,
425→ effects: Vec,
426→ targets: TargetSpec,
427→ ) -> Self {
428→ Ability::triggered(
429→ source_id,
430→ rules_text,
431→ vec![EventType::Dies],
432→ effects,
433→ targets,
434→ )
435→ .in_zones(vec![Zone::Battlefield, Zone::Graveyard])
436→ }
437→
438→ /// "Whenever ~ attacks, [effect]."
439→ pub fn attacks_triggered(
440→ source_id: ObjectId,
441→ rules_text: &str,
442→ effects: Vec,
443→ targets: TargetSpec,
444→ ) -> Self {
445→ Ability::triggered(
446→ source_id,
447→ rules_text,
448→ vec![EventType::AttackerDeclared],
449→ effects,
450→ targets,
451→ )
452→ }
453→
454→ /// "Whenever ~ deals combat damage to a player, [effect]."
455→ pub fn combat_damage_to_player_triggered(
456→ source_id: ObjectId,
457→ rules_text: &str,
458→ effects: Vec,
459→ targets: TargetSpec,
460→ ) -> Self {
461→ Ability::triggered(
462→ source_id,
463→ rules_text,
464→ vec![EventType::DamagedPlayer],
465→ effects,
466→ targets,
467→ )
468→ }
469→
470→ /// "At the beginning of your upkeep, [effect]."
471→ pub fn beginning_of_upkeep_triggered(
472→ source_id: ObjectId,
473→ rules_text: &str,
474→ effects: Vec,
475→ targets: TargetSpec,
476→ ) -> Self {
477→ Ability::triggered(
478→ source_id,
479→ rules_text,
480→ vec![EventType::UpkeepStep],
481→ effects,
482→ targets,
483→ )
484→ }
485→
486→ /// "At the beginning of your end step, [effect]."
487→ pub fn beginning_of_end_step_triggered(
488→ source_id: ObjectId,
489→ rules_text: &str,
490→ effects: Vec,
491→ targets: TargetSpec,
492→ ) -> Self {
493→ Ability::triggered(
494→ source_id,
495→ rules_text,
496→ vec![EventType::EndStep],
497→ effects,
498→ targets,
499→ )
500→ }
501→
502→ /// "Whenever you cast a spell, [effect]."
503→ pub fn spell_cast_triggered(
504→ source_id: ObjectId,
505→ rules_text: &str,
506→ effects: Vec,
507→ targets: TargetSpec,
508→ ) -> Self {
509→ Ability::triggered(
510→ source_id,
511→ rules_text,
512→ vec![EventType::SpellCast],
513→ effects,
514→ targets,
515→ )
516→ }
517→
518→ /// "Whenever another creature enters the battlefield under your control, [effect]."
519→ pub fn other_creature_etb_triggered(
520→ source_id: ObjectId,
521→ rules_text: &str,
522→ effects: Vec,
523→ targets: TargetSpec,
524→ ) -> Self {
525→ Ability::triggered(
526→ source_id,
527→ rules_text,
528→ vec![EventType::EnteredTheBattlefield],
529→ effects,
530→ targets,
531→ )
532→ }
533→
534→ /// "Whenever a creature dies, [effect]."
535→ pub fn any_creature_dies_triggered(
536→ source_id: ObjectId,
537→ rules_text: &str,
538→ effects: Vec,
539→ targets: TargetSpec,
540→ ) -> Self {
541→ Ability::triggered(
542→ source_id,
543→ rules_text,
544→ vec![EventType::Dies],
545→ effects,
546→ targets,
547→ )
548→ }
549→}
550→
551→// ---------------------------------------------------------------------------
552→// Common one-shot effect constructors
553→// ---------------------------------------------------------------------------
554→
555→impl Effect {
556→ /// "Destroy target creature/permanent."
557→ pub fn destroy() -> Self {
558→ Effect::Destroy
559→ }
560→
561→ /// "Exile target."
562→ pub fn exile() -> Self {
563→ Effect::Exile
564→ }
565→
566→ /// "Deal N damage to target."
567→ pub fn deal_damage(amount: u32) -> Self {
568→ Effect::DealDamage { amount }
569→ }
570→
571→ /// "Draw N cards."
572→ pub fn draw_cards(count: u32) -> Self {
573→ Effect::DrawCards { count }
574→ }
575→
576→ /// "Gain N life."
577→ pub fn gain_life(amount: u32) -> Self {
578→ Effect::GainLife { amount }
579→ }
580→
581→ /// "Lose N life."
582→ pub fn lose_life(amount: u32) -> Self {
583→ Effect::LoseLife { amount }
584→ }
585→
586→ /// "Each opponent loses N life."
587→ pub fn lose_life_opponents(amount: u32) -> Self {
588→ Effect::LoseLifeOpponents { amount }
589→ }
590→
591→ /// "Target creature gets +N/+M until end of turn."
592→ pub fn boost_until_eot(power: i32, toughness: i32) -> Self {
593→ Effect::BoostUntilEndOfTurn { power, toughness }
594→ }
595→
596→ /// "Target creature gets +N/+M."
597→ pub fn boost_permanent(power: i32, toughness: i32) -> Self {
598→ Effect::BoostPermanent { power, toughness }
599→ }
600→
601→ /// "Create N token(s)."
602→ pub fn create_token(token_name: &str, count: u32) -> Self {
603→ Effect::CreateToken {
604→ token_name: token_name.to_string(),
605→ count,
606→ }
607→ }
608→
609→ /// "Create N token(s) that are tapped and attacking. Sacrifice at next end step."
610→ /// Used by Mobilize.
611→ pub fn create_token_tapped_attacking(token_name: &str, count: u32) -> Self {
612→ Effect::CreateTokenTappedAttacking {
613→ token_name: token_name.to_string(),
614→ count,
615→ }
616→ }
617→
618→ /// "Counter target spell."
619→ pub fn counter_spell() -> Self {
620→ Effect::CounterSpell
621→ }
622→
623→ /// "Scry N."
624→ pub fn scry(count: u32) -> Self {
625→ Effect::Scry { count }
626→ }
627→
628→ /// "Mill N."
629→ pub fn mill(count: u32) -> Self {
630→ Effect::Mill { count }
631→ }
632→
633→ /// "Discard N cards."
634→ pub fn discard_cards(count: u32) -> Self {
635→ Effect::DiscardCards { count }
636→ }
637→
638→ /// "Return target to owner's hand."
639→ pub fn bounce() -> Self {
640→ Effect::Bounce
641→ }
642→
643→ /// "Return target card from graveyard to hand."
644→ pub fn return_from_graveyard() -> Self {
645→ Effect::ReturnFromGraveyard
646→ }
647→
648→ /// "Return target card from graveyard to battlefield."
649→ pub fn reanimate() -> Self {
650→ Effect::Reanimate
651→ }
652→
653→ /// "Put N +1/+1 counters on target."
654→ pub fn add_p1p1_counters(count: u32) -> Self {
655→ Effect::AddCounters {
656→ counter_type: "+1/+1".to_string(),
657→ count,
658→ }
659→ }
660→
661→ /// "Add counters of specified type."
662→ pub fn add_counters(counter_type: &str, count: u32) -> Self {
663→ Effect::AddCounters {
664→ counter_type: counter_type.to_string(),
665→ count,
666→ }
667→ }
668→
669→ /// "Tap target permanent."
670→ pub fn tap_target() -> Self {
671→ Effect::TapTarget
672→ }
673→
674→ /// "Untap target permanent."
675→ pub fn untap_target() -> Self {
676→ Effect::UntapTarget
677→ }
678→
679→ /// "Add mana."
680→ pub fn add_mana(mana: Mana) -> Self {
681→ Effect::AddMana { mana }
682→ }
683→
684→ /// "Gain keyword until end of turn."
685→ pub fn gain_keyword_eot(keyword: &str) -> Self {
686→ Effect::GainKeywordUntilEndOfTurn {
687→ keyword: keyword.to_string(),
688→ }
689→ }
690→
691→ /// "Set power and toughness."
692→ pub fn set_pt(power: i32, toughness: i32) -> Self {
693→ Effect::SetPowerToughness { power, toughness }
694→ }
695→
696→ /// "Destroy all creatures" (or other filter).
697→ pub fn destroy_all(filter: &str) -> Self {
698→ Effect::DestroyAll {
699→ filter: filter.to_string(),
700→ }
701→ }
702→
703→ /// "Deal N damage to each opponent."
704→ pub fn damage_opponents(amount: u32) -> Self {
705→ Effect::DealDamageOpponents { amount }
706→ }
707→
708→ /// "Search library for a card."
709→ pub fn search_library(filter: &str) -> Self {
710→ Effect::SearchLibrary {
711→ filter: filter.to_string(),
712→ }
713→ }
714→
715→ /// "Gain control of target."
716→ pub fn gain_control() -> Self {
717→ Effect::GainControl
718→ }
719→
720→ /// "Gain control of target until end of turn."
721→ pub fn gain_control_eot() -> Self {
722→ Effect::GainControlUntilEndOfTurn
723→ }
724→
725→ /// "Target gains protection from [quality] until end of turn."
726→ pub fn gain_protection(from: &str) -> Self {
727→ Effect::GainProtection {
728→ from: from.to_string(),
729→ }
730→ }
731→
732→ /// "Target becomes indestructible until end of turn."
733→ pub fn indestructible() -> Self {
734→ Effect::Indestructible
735→ }
736→
737→ /// "Target gains hexproof until end of turn."
738→ pub fn hexproof() -> Self {
739→ Effect::Hexproof
740→ }
741→}
742→
743→// ---------------------------------------------------------------------------
744→// Common static effect builders
745→// ---------------------------------------------------------------------------
746→
747→impl StaticEffect {
748→ /// "Other creatures you control get +N/+M." (Lord effect)
749→ pub fn boost_controlled(filter: &str, power: i32, toughness: i32) -> Self {
750→ StaticEffect::Boost {
751→ filter: filter.to_string(),
752→ power,
753→ toughness,
754→ }
755→ }
756→
757→ /// "Creatures you control have [keyword]."
758→ pub fn grant_keyword_controlled(filter: &str, keyword: &str) -> Self {
759→ StaticEffect::GrantKeyword {
760→ filter: filter.to_string(),
761→ keyword: keyword.to_string(),
762→ }
763→ }
764→
765→ /// "Creatures you control can't be blocked" (or specific CantBlock variant).
766→ pub fn cant_block(filter: &str) -> Self {
767→ StaticEffect::CantBlock {
768→ filter: filter.to_string(),
769→ }
770→ }
771→
772→ /// "Creatures you control can't attack."
773→ pub fn cant_attack(filter: &str) -> Self {
774→ StaticEffect::CantAttack {
775→ filter: filter.to_string(),
776→ }
777→ }
778→
779→ /// "[Spell type] spells you cast cost {N} less."
780→ pub fn cost_reduction(filter: &str, amount: u32) -> Self {
781→ StaticEffect::CostReduction {
782→ filter: filter.to_string(),
783→ amount,
784→ }
785→ }
786→}
787→
788→// ---------------------------------------------------------------------------
789→// Common cost builders
790→// ---------------------------------------------------------------------------
791→
792→impl Cost {
793→ /// Pay mana cost from a string like "{2}{B}".
794→ pub fn pay_mana(mana_str: &str) -> Self {
795→ use crate::mana::ManaCost;
796→ Cost::Mana(ManaCost::parse(mana_str).to_mana())
797→ }
798→
799→ /// Tap this permanent ({T}).
800→ pub fn tap_self() -> Self {
801→ Cost::TapSelf
802→ }
803→
804→ /// Sacrifice this permanent.
805→ pub fn sacrifice_self() -> Self {
806→ Cost::SacrificeSelf
807→ }
808→
809→ /// Sacrifice another permanent matching a description.
810→ pub fn sacrifice_other(filter: &str) -> Self {
811→ Cost::SacrificeOther(filter.to_string())
812→ }
813→
814→ /// Pay N life.
815→ pub fn pay_life(amount: u32) -> Self {
816→ Cost::PayLife(amount)
817→ }
818→
819→ /// Discard N cards.
820→ pub fn discard(count: u32) -> Self {
821→ Cost::Discard(count)
822→ }
823→
824→ /// Exile N cards from hand.
825→ pub fn exile_from_hand(count: u32) -> Self {
826→ Cost::ExileFromHand(count)
827→ }
828→
829→ /// Exile N cards from graveyard.
830→ pub fn exile_from_graveyard(count: u32) -> Self {
831→ Cost::ExileFromGraveyard(count)
832→ }
833→
834→ /// Remove N counters of a type from this permanent.
835→ pub fn remove_counters(counter_type: &str, count: u32) -> Self {
836→ Cost::RemoveCounters(counter_type.to_string(), count)
837→ }
838→
839→ /// Blight N — put N -1/-1 counters on a creature you control.
840→ pub fn blight(count: u32) -> Self {
841→ Cost::Blight(count)
842→ }
843→
844→ /// Reveal a card of a specific type from hand.
845→ pub fn reveal_from_hand(card_type: &str) -> Self {
846→ Cost::RevealFromHand(card_type.to_string())
847→ }
848→}
849→
850→// ---------------------------------------------------------------------------
851→// Static (continuous) effects
852→// ---------------------------------------------------------------------------
853→
854→/// A continuous effect generated by a static ability.
855→///
856→/// These are applied in the 7-layer system each time the game state is
857→/// recalculated (see effects.rs for Layer enum).
858→#[derive(Clone, Debug, Serialize, Deserialize)]
859→pub enum StaticEffect {
860→ /// Boost P/T of matching permanents.
861→ Boost {
862→ filter: String,
863→ power: i32,
864→ toughness: i32,
865→ },
866→ /// Grant a keyword to matching permanents.
867→ GrantKeyword {
868→ filter: String,
869→ keyword: String,
870→ },
871→ /// Remove a keyword from matching permanents.
872→ RemoveKeyword {
873→ filter: String,
874→ keyword: String,
875→ },
876→ /// Prevent matching permanents from attacking.
877→ CantAttack {
878→ filter: String,
879→ },
880→ /// Prevent matching permanents from blocking.
881→ CantBlock {
882→ filter: String,
883→ },
884→ /// Reduce cost of matching spells.
885→ CostReduction {
886→ filter: String,
887→ amount: u32,
888→ },
889→ /// Matching permanents enter the battlefield tapped.
890→ EntersTapped {
891→ filter: String,
892→ },
893→ /// Other players can't gain life.
894→ CantGainLife,
895→ /// Other players can't draw extra cards.
896→ CantDrawExtraCards,
897→ /// Custom continuous effect.
898→ Custom(String),
899→}
900→
901→// ---------------------------------------------------------------------------
902→// AbilityStore — stores abilities by source
903→// ---------------------------------------------------------------------------
904→
905→/// Stores all abilities for all objects in the game.
906→#[derive(Clone, Debug, Default, Serialize, Deserialize)]
907→pub struct AbilityStore {
908→ /// All abilities, keyed by their unique AbilityId.
909→ abilities: std::collections::HashMap,
910→ /// Index: source ObjectId → list of AbilityIds.
911→ by_source: std::collections::HashMap>,
912→}
913→
914→impl AbilityStore {
915→ pub fn new() -> Self {
916→ Self::default()
917→ }
918→
919→ /// Register an ability for a source object.
920→ pub fn add(&mut self, ability: Ability) {
921→ let id = ability.id;
922→ let source = ability.source_id;
923→ self.abilities.insert(id, ability);
924→ self.by_source.entry(source).or_default().push(id);
925→ }
926→
927→ /// Get an ability by its ID.
928→ pub fn get(&self, id: AbilityId) -> Option<&Ability> {
929→ self.abilities.get(&id)
930→ }
931→
932→ /// Get all abilities for a source object.
933→ pub fn for_source(&self, source_id: ObjectId) -> Vec<&Ability> {
934→ self.by_source
935→ .get(&source_id)
936→ .map(|ids| ids.iter().filter_map(|id| self.abilities.get(id)).collect())
937→ .unwrap_or_default()
938→ }
939→
940→ /// Get all triggered abilities that should fire for an event.
941→ pub fn triggered_by(&self, event: &GameEvent) -> Vec<&Ability> {
942→ self.abilities
943→ .values()
944→ .filter(|a| a.should_trigger(event))
945→ .collect()
946→ }
947→
948→ /// Get all mana abilities for a source.
949→ pub fn mana_abilities_for(&self, source_id: ObjectId) -> Vec<&Ability> {
950→ self.for_source(source_id)
951→ .into_iter()
952→ .filter(|a| a.is_mana_ability())
953→ .collect()
954→ }
955→
956→ /// Remove all abilities for a source (e.g. when permanent leaves battlefield).
957→ pub fn remove_source(&mut self, source_id: ObjectId) {
958→ if let Some(ids) = self.by_source.remove(&source_id) {
959→ for id in ids {
960→ self.abilities.remove(&id);
961→ }
962→ }
963→ }
964→
965→ /// Total number of registered abilities.
966→ pub fn len(&self) -> usize {
967→ self.abilities.len()
968→ }
969→
970→ pub fn is_empty(&self) -> bool {
971→ self.abilities.is_empty()
972→ }
973→}
974→
975→#[cfg(test)]
976→mod tests {
977→ use super::*;
978→ use crate::events::EventType;
979→ use crate::types::PlayerId;
980→
981→ #[test]
982→ fn activated_ability() {
983→ let source = ObjectId::new();
984→ let ability = Ability::activated(
985→ source,
986→ "{2}, {T}: Draw a card.",
987→ vec![Cost::Mana(Mana::generic(2)), Cost::TapSelf],
988→ vec![Effect::DrawCards { count: 1 }],
989→ TargetSpec::None,
990→ );
991→
992→ assert_eq!(ability.ability_type, AbilityType::ActivatedNonMana);
993→ assert_eq!(ability.costs.len(), 2);
994→ assert_eq!(ability.effects.len(), 1);
995→ assert!(ability.uses_stack());
996→ }
997→
998→ #[test]
999→ fn triggered_ability() {
1000→ let source = ObjectId::new();
1001→ let ability = Ability::triggered(
1002→ source,
1003→ "When this creature enters the battlefield, draw a card.",
1004→ vec![EventType::EnteredTheBattlefield],
1005→ vec![Effect::DrawCards { count: 1 }],
1006→ TargetSpec::None,
1007→ );
1008→
1009→ assert_eq!(ability.ability_type, AbilityType::TriggeredNonMana);
1010→ assert!(ability.uses_stack());
1011→
1012→ // Check trigger matching
1013→ let event = GameEvent::enters_battlefield(source, PlayerId::new());
1014→ // The event type is EntersTheBattlefield, but our trigger watches EnteredTheBattlefield
1015→ let post_event = GameEvent::new(EventType::EnteredTheBattlefield)
1016→ .target(source);
1017→ assert!(ability.should_trigger(&post_event));
1018→ assert!(!ability.should_trigger(&event)); // pre-event, not what we trigger on
1019→ }
1020→
1021→ #[test]
1022→ fn mana_ability() {
1023→ let source = ObjectId::new();
1024→ let ability = Ability::mana_ability(
1025→ source,
1026→ "{T}: Add {G}.",
1027→ Mana::green(1),
1028→ );
1029→
1030→ assert_eq!(ability.ability_type, AbilityType::ActivatedMana);
1031→ assert!(ability.is_mana_ability());
1032→ assert!(!ability.uses_stack());
1033→ assert_eq!(ability.mana_produced, Some(Mana::green(1)));
1034→ }
1035→
1036→ #[test]
1037→ fn static_ability_boost() {
1038→ let source = ObjectId::new();
1039→ let ability = Ability::static_ability(
1040→ source,
1041→ "Other creatures you control get +1/+1.",
1042→ vec![StaticEffect::Boost {
1043→ filter: "other creatures you control".to_string(),
1044→ power: 1,
1045→ toughness: 1,
1046→ }],
1047→ );
1048→
1049→ assert_eq!(ability.ability_type, AbilityType::Static);
1050→ assert!(!ability.uses_stack());
1051→ assert_eq!(ability.static_effects.len(), 1);
1052→ }
1053→
1054→ #[test]
1055→ fn spell_ability() {
1056→ let source = ObjectId::new();
1057→ let ability = Ability::spell(
1058→ source,
1059→ vec![Effect::DealDamage { amount: 3 }],
1060→ TargetSpec::CreatureOrPlayer,
1061→ );
1062→
1063→ assert_eq!(ability.ability_type, AbilityType::Spell);
1064→ assert!(ability.uses_stack());
1065→ }
1066→
1067→ #[test]
1068→ fn ability_store() {
1069→ let mut store = AbilityStore::new();
1070→ let source = ObjectId::new();
1071→
1072→ let a1 = Ability::mana_ability(source, "{T}: Add {G}.", Mana::green(1));
1073→ let a1_id = a1.id;
1074→ let a2 = Ability::activated(
1075→ source,
1076→ "{1}{G}: +1/+1",
1077→ vec![Cost::Mana(Mana { green: 1, generic: 1, ..Default::default() })],
1078→ vec![Effect::BoostUntilEndOfTurn { power: 1, toughness: 1 }],
1079→ TargetSpec::None,
1080→ );
1081→
1082→ store.add(a1);
1083→ store.add(a2);
1084→
1085→ assert_eq!(store.len(), 2);
1086→ assert_eq!(store.for_source(source).len(), 2);
1087→ assert_eq!(store.mana_abilities_for(source).len(), 1);
1088→ assert!(store.get(a1_id).is_some());
1089→
1090→ store.remove_source(source);
1091→ assert!(store.is_empty());
1092→ }
1093→
1094→ #[test]
1095→ fn optional_trigger() {
1096→ let source = ObjectId::new();
1097→ let ability = Ability::triggered(
1098→ source,
1099→ "When ~ enters, you may draw a card.",
1100→ vec![EventType::EnteredTheBattlefield],
1101→ vec![Effect::DrawCards { count: 1 }],
1102→ TargetSpec::None,
1103→ ).set_optional();
1104→
1105→ assert!(ability.optional_trigger);
1106→ }
1107→
1108→ #[test]
1109→ fn active_zones() {
1110→ let source = ObjectId::new();
1111→ let ability = Ability::activated(
1112→ source,
1113→ "Exile from graveyard: effect",
1114→ vec![],
1115→ vec![],
1116→ TargetSpec::None,
1117→ ).in_zones(vec![Zone::Graveyard]);
1118→
1119→ assert!(ability.can_activate_in_zone(Zone::Graveyard));
1120→ assert!(!ability.can_activate_in_zone(Zone::Battlefield));
1121→ }
1122→
1123→ // ── Tests for common builders ──────────────────────────────────────
1124→
1125→ #[test]
1126→ fn etb_triggered() {
1127→ let source = ObjectId::new();
1128→ let ability = Ability::enters_battlefield_triggered(
1129→ source,
1130→ "When ~ enters, draw a card.",
1131→ vec![Effect::draw_cards(1)],
1132→ TargetSpec::None,
1133→ );
1134→
1135→ assert_eq!(ability.ability_type, AbilityType::TriggeredNonMana);
1136→ assert!(ability.trigger_events.contains(&EventType::EnteredTheBattlefield));
1137→ assert_eq!(ability.effects.len(), 1);
1138→ }
1139→
1140→ #[test]
1141→ fn dies_triggered() {
1142→ let source = ObjectId::new();
1143→ let ability = Ability::dies_triggered(
1144→ source,
1145→ "When ~ dies, each opponent loses 1 life.",
1146→ vec![Effect::damage_opponents(1)],
1147→ TargetSpec::None,
1148→ );
1149→
1150→ assert!(ability.trigger_events.contains(&EventType::Dies));
1151→ // Dies triggers work from battlefield and graveyard
1152→ assert!(ability.active_zones.contains(&Zone::Battlefield));
1153→ assert!(ability.active_zones.contains(&Zone::Graveyard));
1154→ }
1155→
1156→ #[test]
1157→ fn attacks_triggered() {
1158→ let source = ObjectId::new();
1159→ let ability = Ability::attacks_triggered(
1160→ source,
1161→ "Whenever ~ attacks, draw a card.",
1162→ vec![Effect::draw_cards(1)],
1163→ TargetSpec::None,
1164→ );
1165→
1166→ assert!(ability.trigger_events.contains(&EventType::AttackerDeclared));
1167→ }
1168→
1169→ #[test]
1170→ fn combat_damage_triggered() {
1171→ let source = ObjectId::new();
1172→ let ability = Ability::combat_damage_to_player_triggered(
1173→ source,
1174→ "Whenever ~ deals combat damage to a player, draw a card.",
1175→ vec![Effect::draw_cards(1)],
1176→ TargetSpec::None,
1177→ );
1178→
1179→ assert!(ability.trigger_events.contains(&EventType::DamagedPlayer));
1180→ }
1181→
1182→ #[test]
1183→ fn upkeep_triggered() {
1184→ let source = ObjectId::new();
1185→ let ability = Ability::beginning_of_upkeep_triggered(
1186→ source,
1187→ "At the beginning of your upkeep, gain 1 life.",
1188→ vec![Effect::gain_life(1)],
1189→ TargetSpec::None,
1190→ );
1191→
1192→ assert!(ability.trigger_events.contains(&EventType::UpkeepStep));
1193→ }
1194→
1195→ #[test]
1196→ fn end_step_triggered() {
1197→ let source = ObjectId::new();
1198→ let ability = Ability::beginning_of_end_step_triggered(
1199→ source,
1200→ "At the beginning of your end step, create a 1/1 token.",
1201→ vec![Effect::create_token("Soldier", 1)],
1202→ TargetSpec::None,
1203→ );
1204→
1205→ assert!(ability.trigger_events.contains(&EventType::EndStep));
1206→ }
1207→
1208→ #[test]
1209→ fn effect_builders() {
1210→ // Test various effect constructors
1211→ match Effect::deal_damage(3) {
1212→ Effect::DealDamage { amount } => assert_eq!(amount, 3),
1213→ _ => panic!("wrong variant"),
1214→ }
1215→
1216→ match Effect::draw_cards(2) {
1217→ Effect::DrawCards { count } => assert_eq!(count, 2),
1218→ _ => panic!("wrong variant"),
1219→ }
1220→
1221→ match Effect::gain_life(5) {
1222→ Effect::GainLife { amount } => assert_eq!(amount, 5),
1223→ _ => panic!("wrong variant"),
1224→ }
1225→
1226→ match Effect::boost_until_eot(2, 2) {
1227→ Effect::BoostUntilEndOfTurn { power, toughness } => {
1228→ assert_eq!(power, 2);
1229→ assert_eq!(toughness, 2);
1230→ }
1231→ _ => panic!("wrong variant"),
1232→ }
1233→
1234→ match Effect::create_token("Zombie", 3) {
1235→ Effect::CreateToken { token_name, count } => {
1236→ assert_eq!(token_name, "Zombie");
1237→ assert_eq!(count, 3);
1238→ }
1239→ _ => panic!("wrong variant"),
1240→ }
1241→
1242→ match Effect::add_p1p1_counters(2) {
1243→ Effect::AddCounters { counter_type, count } => {
1244→ assert_eq!(counter_type, "+1/+1");
1245→ assert_eq!(count, 2);
1246→ }
1247→ _ => panic!("wrong variant"),
1248→ }
1249→ }
1250→
1251→ #[test]
1252→ fn cost_builders() {
1253→ match Cost::tap_self() {
1254→ Cost::TapSelf => {}
1255→ _ => panic!("wrong variant"),
1256→ }
1257→
1258→ match Cost::sacrifice_self() {
1259→ Cost::SacrificeSelf => {}
1260→ _ => panic!("wrong variant"),
1261→ }
1262→
1263→ match Cost::pay_life(3) {
1264→ Cost::PayLife(n) => assert_eq!(n, 3),
1265→ _ => panic!("wrong variant"),
1266→ }
1267→
1268→ match Cost::discard(1) {
1269→ Cost::Discard(n) => assert_eq!(n, 1),
1270→ _ => panic!("wrong variant"),
1271→ }
1272→
1273→ match Cost::sacrifice_other("a creature") {
1274→ Cost::SacrificeOther(desc) => assert_eq!(desc, "a creature"),
1275→ _ => panic!("wrong variant"),
1276→ }
1277→ }
1278→
1279→ #[test]
1280→ fn static_effect_builders() {
1281→ match StaticEffect::boost_controlled("creatures you control", 1, 1) {
1282→ StaticEffect::Boost { filter, power, toughness } => {
1283→ assert_eq!(filter, "creatures you control");
1284→ assert_eq!(power, 1);
1285→ assert_eq!(toughness, 1);
1286→ }
1287→ _ => panic!("wrong variant"),
1288→ }
1289→
1290→ match StaticEffect::grant_keyword_controlled("creatures you control", "flying") {
1291→ StaticEffect::GrantKeyword { filter, keyword } => {
1292→ assert_eq!(filter, "creatures you control");
1293→ assert_eq!(keyword, "flying");
1294→ }
1295→ _ => panic!("wrong variant"),
1296→ }
1297→
1298→ match StaticEffect::cost_reduction("creature spells", 1) {
1299→ StaticEffect::CostReduction { filter, amount } => {
1300→ assert_eq!(filter, "creature spells");
1301→ assert_eq!(amount, 1);
1302→ }
1303→ _ => panic!("wrong variant"),
1304→ }
1305→ }
1306→
1307→ #[test]
1308→ fn compose_realistic_card_lightning_bolt() {
1309→ // Lightning Bolt: {R} instant, "Deal 3 damage to any target."
1310→ let source = ObjectId::new();
1311→ let ability = Ability::spell(
1312→ source,
1313→ vec![Effect::deal_damage(3)],
1314→ TargetSpec::CreatureOrPlayer,
1315→ );
1316→ assert_eq!(ability.effects.len(), 1);
1317→ assert!(ability.uses_stack());
1318→ }
1319→
1320→ #[test]
1321→ fn compose_realistic_card_llanowar_elves() {
1322→ // Llanowar Elves: {G} creature, "{T}: Add {G}."
1323→ let source = ObjectId::new();
1324→ let ability = Ability::mana_ability(source, "{T}: Add {G}.", Mana::green(1));
1325→ assert!(ability.is_mana_ability());
1326→ assert_eq!(ability.costs.len(), 1);
1327→ match &ability.costs[0] {
1328→ Cost::TapSelf => {}
1329→ _ => panic!("expected TapSelf cost"),
1330→ }
1331→ }
1332→
1333→ #[test]
1334→ fn compose_realistic_card_mulldrifter() {
1335→ // Mulldrifter: when enters, draw 2 cards
1336→ let source = ObjectId::new();
1337→ let ability = Ability::enters_battlefield_triggered(
1338→ source,
1339→ "When Mulldrifter enters the battlefield, draw two cards.",
1340→ vec![Effect::draw_cards(2)],
1341→ TargetSpec::None,
1342→ );
1343→ assert!(ability.should_trigger(&GameEvent::new(EventType::EnteredTheBattlefield).target(source)));
1344→ }
1345→
1346→ #[test]
1347→ fn compose_realistic_lord() {
1348→ // Lord of Atlantis: Other Merfolk get +1/+1 and have islandwalk.
1349→ let source = ObjectId::new();
1350→ let ability = Ability::static_ability(
1351→ source,
1352→ "Other Merfolk you control get +1/+1 and have islandwalk.",
1353→ vec![
1354→ StaticEffect::boost_controlled("other Merfolk you control", 1, 1),
1355→ StaticEffect::grant_keyword_controlled("other Merfolk you control", "islandwalk"),
1356→ ],
1357→ );
1358→ assert_eq!(ability.static_effects.len(), 2);
1359→ }
1360→}
1361→
```
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs"
}
```
## Assistant
**Result** (success):
```
Output too large (104.6KB). Full output saved to: /mnt/dest-btrfs/home/jc/.claude/projects/-mnt-dest-btrfs-home-jc-src-mage/4522776e-dcf7-471f-93dc-b0c837cf8e09/tool-results/toolu_01Roy9D5RGED9Bir33M2GXbD.txt
Preview (first 2KB):
1→// Game — the top-level game runner.
2→//
3→// The Game struct ties together the GameState, TurnManager, and
4→// PlayerDecisionMaker implementations to run a complete game of Magic.
5→//
6→// The game loop follows the MTG comprehensive rules:
7→// 1. Advance to the next step/phase
8→// 2. Process turn-based actions for that step
9→// 3. Check state-based actions (loop until none found)
10→// 4. Put triggered abilities on the stack
11→// 5. Give active player priority
12→// 6. Players pass priority or take actions
13→// 7. When all pass with empty stack → advance; with items → resolve top
14→//
15→// Ported from mage.game.GameImpl.
16→
17→use crate::abilities::{Cost, Effect};
18→use crate::constants::AbilityType;
19→use crate::card::CardData;
20→use crate::constants::PhaseStep;
21→use crate::counters::CounterType;
22→use crate::decision::PlayerDecisionMaker;
23→use crate::permanent::Permanent;
24→use crate::state::{GameState, StateBasedActions};
25→use crate::turn::{has_priority, PriorityTracker, TurnManager};
26→use crate::types::{AbilityId, ObjectId, PlayerId};
27→use crate::watchers::WatcherManager;
28→use std::collections::HashMap;
29→
30→/// Maximum number of SBA iterations before we bail out (safety valve).
31→const MAX_SBA_ITERATIONS: u32 = 100;
32→
33→/// Maximum number of turns before the game is declared a draw (safety valve).
34→const MAX_TURNS: u32 = 500;
35→
36→/// Configuration for a new game.
37→pub struct GameConfig {
38→ /// Player names and their decks (as CardData vectors).
39→ pub players: Vec,
40→ /// Starting life total (default 20).
41→ pub starting_life: i32,
42→}
43→
44→/// Configuration for a single player in a new game.
45→pub struct PlayerConfig {
46→ pub name: String,
47→ pub deck: Vec,
48→}
...
```
## Assistant
## Assistant
Now let me investigate each sub-batch by finding the exact card lines. Let me search in parallel.
## Assistant
### Tool: Grep
**Args:**
```json
{
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets",
"pattern": "Custom\\(\"Destroy all creatures\\.\"\\)"
}
```
## Assistant
**Result** (success):
```
No matches found
```
## Assistant
### Tool: Grep
**Args:**
```json
{
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets",
"pattern": "Custom\\(\"Enters tapped\\.\"\\)"
}
```
## Assistant
**Result** (success):
```
No matches found
```
## Assistant
### Tool: Grep
**Args:**
```json
{
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets",
"pattern": "Custom\\(\"Target creature can't block this turn\\.\"\\)"
}
```
## Assistant
**Result** (success):
```
No matches found
```
## Assistant
### Tool: Grep
**Args:**
```json
{
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets",
"pattern": "Custom\\(\"Put.*-1/-1 counter"
}
```
## Assistant
**Result** (success):
```
mtg-rl/mtg-cards/src/sets/ecl.rs:354: vec![Effect::Custom("Put two -1/-1 counters on Blighted Blackthorn.".into()), Effect::draw_cards(1), Effect::lose_life(1)],
mtg-rl/mtg-cards/src/sets/ecl.rs:358: vec![Effect::Custom("Put two -1/-1 counters on Blighted Blackthorn.".into()), Effect::draw_cards(1), Effect::lose_life(1)],
mtg-rl/mtg-cards/src/sets/ecl.rs:464: vec![Cost::pay_mana("{1}{B}"), Cost::Custom("Put a -1/-1 counter on this creature".into())],
mtg-rl/mtg-cards/src/sets/ecl.rs:596: vec![Effect::Custom("Put a -1/-1 counter on Dream Seizer. Each opponent discards a card.".into())],
mtg-rl/mtg-cards/src/sets/ecl.rs:1438: vec![Effect::Custom("Put two -1/-1 counters on Sourbread Auntie.".into()), Effect::create_token("1/1 Goblin", 2)],
mtg-rl/mtg-cards/src/sets/ecl.rs:1467: vec![Effect::Custom("Put a -1/-1 counter on Sting-Slinger.".into()), Effect::damage_opponents(2)],
mtg-rl/mtg-cards/src/sets/ecl.rs:1691: vec![Effect::Custom("Put a -1/-1 counter on Warren Torchmaster. Target creature gains haste until end of turn.".into())],
mtg-rl/mtg-cards/src/sets/ecl.rs:1843: abilities: vec![Ability::spell(id, vec![Effect::Custom("Put two -1/-1 counters on each creature.".into())], TargetSpec::None)],
```
## Assistant
### Tool: Grep
**Args:**
```json
{
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets",
"pattern": "Custom\\(\"Remove a -1/-1 counter"
}
```
## Assistant
**Result** (success):
```
mtg-rl/mtg-cards/src/sets/ecl.rs:715: vec![Effect::Custom("Remove a -1/-1 counter from Encumbered Reejerey.".into())],
mtg-rl/mtg-cards/src/sets/ecl.rs:992: vec![Effect::scry(1), Effect::Custom("Remove a -1/-1 counter from Heirloom Auntie.".into())],
mtg-rl/mtg-cards/src/sets/ecl.rs:1256: vec![Effect::Custom("Remove a -1/-1 counter from Reluctant Dounguard.".into())],
mtg-rl/mtg-cards/src/sets/ecl.rs:2197: vec![Effect::Custom("Remove a -1/-1 counter from this creature.".into())],
```
## Assistant
### Tool: Grep
**Args:**
```json
{
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets",
"pattern": "Custom\\(\"draw a card, then discard a card\"\\)"
}
```
## Assistant
**Result** (success):
```
No matches found
```
## Assistant
### Tool: Grep
**Args:**
```json
{
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets",
"pattern": "Custom\\(\"When this creature enters, draw a card\\.\"\\)"
}
```
## Assistant
**Result** (success):
```
No matches found
```
## Assistant
## Assistant
Some patterns weren't found — line numbers shifted or text changed. Let me search more broadly for the remaining items.
## Assistant
### Tool: Grep
**Args:**
```json
{
"-C": 3,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/fdn.rs",
"pattern": "Day of Judgment|DayOfJudgment"
}
```
## Assistant
**Result** (success):
```
171- registry.register("Deathmark", deathmark, "FDN");
172- registry.register("Crash Through", crash_through, "FDN");
173- registry.register("Dragon Fodder", dragon_fodder, "FDN");
174: registry.register("Day of Judgment", day_of_judgment, "FDN");
175- registry.register("Angelic Edict", angelic_edict, "FDN");
176- registry.register("Chart a Course", chart_a_course, "FDN");
177- registry.register("Macabre Waltz", macabre_waltz, "FDN");
--
2410-
2411-fn day_of_judgment(id: ObjectId, owner: PlayerId) -> CardData {
2412- // Sorcery {2}{W}{W}. Destroy all creatures.
2413: CardData { id, owner, name: "Day of Judgment".into(), mana_cost: ManaCost::parse("{2}{W}{W}"),
2414- card_types: vec![CardType::Sorcery], rarity: Rarity::Rare,
2415- abilities: vec![
2416- Ability::spell(id,
```
## Assistant
### Tool: Grep
**Args:**
```json
{
"-C": 3,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/fdn.rs",
"pattern": "Diregraf Ghoul|DiregrafGhoul"
}
```
## Assistant
**Result** (success):
```
21- registry.register("Brazen Scourge", brazen_scourge, "FDN");
22- registry.register("Burglar Rat", burglar_rat, "FDN");
23- registry.register("Campus Guide", campus_guide, "FDN");
24: registry.register("Diregraf Ghoul", diregraf_ghoul, "FDN");
25- registry.register("Dragon Trainer", dragon_trainer, "FDN");
26- registry.register("Druid of the Cowl", druid_of_the_cowl, "FDN");
27- registry.register("Erudite Wizard", erudite_wizard, "FDN");
--
634-}
635-
636-fn diregraf_ghoul(id: ObjectId, owner: PlayerId) -> CardData {
637: // Diregraf Ghoul enters the battlefield tapped.
638: CardData { id, owner, name: "Diregraf Ghoul".into(), mana_cost: ManaCost::parse("{B}"),
639- card_types: vec![CardType::Creature], subtypes: vec![SubType::Zombie],
640- power: Some(2), toughness: Some(2), rarity: Rarity::Uncommon,
641- abilities: vec![
642- Ability::static_ability(id,
643: "Diregraf Ghoul enters the battlefield tapped.",
644- vec![StaticEffect::Custom("Enters tapped.".into())]),
645- ],
646- ..Default::default() }
```
## Assistant
### Tool: Grep
**Args:**
```json
{
"-C": 3,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/fdn.rs",
"pattern": "Frenzied Goblin|FrenziedGoblin"
}
```
## Assistant
**Result** (success):
```
119- registry.register("Driver of the Dead", driver_of_the_dead, "FDN");
120- registry.register("Fanatical Firebrand", fanatical_firebrand, "FDN");
121- registry.register("Goblin Smuggler", goblin_smuggler, "FDN");
122: registry.register("Frenzied Goblin", frenzied_goblin, "FDN");
123- registry.register("Ghitu Lavarunner", ghitu_lavarunner, "FDN");
124- registry.register("Courageous Goblin", courageous_goblin, "FDN");
125- registry.register("Heartfire Immolator", heartfire_immolator, "FDN");
--
1771-
1772-fn frenzied_goblin(id: ObjectId, owner: PlayerId) -> CardData {
1773- / 1/1 Goblin Berserker for {R}. Attacks: pay {R}, creature can't block.
1774: CardData { id, owner, name: "Frenzied Goblin".into(), mana_cost: ManaCost::parse("{R}"),
1775- card_types: vec![CardType::Creature], subtypes: vec![SubType::Goblin, SubType::Berserker],
1776- power: Some(1), toughness: Some(1), rarity: Rarity::Uncommon,
1777- abilities: vec![
1778- Ability::attacks_triggered(id,
1779: "Whenever Frenzied Goblin attacks, you may pay {R}. If you do, target creature can't block this turn.",
1780- vec![Effect::Custom("Target creature can't block this turn.".into())],
1781- TargetSpec::Creature),
1782- ],
```
## Assistant
### Tool: Grep
**Args:**
```json
{
"-C": 3,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/ecl.rs",
"pattern": "Skoa Veteran|SkoaVeteran"
}
```
## Assistant
**Result** (success):
```
No matches found
```
## Assistant
### Tool: Grep
**Args:**
```json
{
"-C": 3,
"-i": true,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/fdn.rs",
"pattern": "draw a card.*discard a card|loot"
}
```
## Assistant
**Result** (success):
```
427- registry.register("Krenko, Mob Boss", krenko_mob_boss, "FDN");
428- registry.register("Lightshell Duo", lightshell_duo, "FDN");
429- registry.register("Linden, the Steadfast Queen", linden_the_steadfast_queen, "FDN");
430: registry.register("Loot, Exuberant Explorer", loot_exuberant_explorer, "FDN");
431- registry.register("Mentor of the Meek", mentor_of_the_meek, "FDN");
432- registry.register("Meteor Golem", meteor_golem, "FDN");
433- registry.register("Micromancer", micromancer, "FDN");
--
6337- rarity: Rarity::Common,
6338- abilities: vec![
6339- Ability::triggered(id,
6340: "When this creature enters, draw a card, then discard a card.",
6341- vec![EventType::EnteredTheBattlefield],
6342: vec![Effect::Custom("When this creature enters, draw a card, then discard a card.".into())],
6343- TargetSpec::None),
6344- ],
6345- ..Default::default() }
--
6500- ..Default::default() }
6501-}
6502-
6503:fn loot_exuberant_explorer(id: ObjectId, owner: PlayerId) -> CardData {
6504: CardData { id, owner, name: "Loot, Exuberant Explorer".into(), mana_cost: ManaCost::parse("{2}{G}"),
6505- card_types: vec![CardType::Creature],
6506- subtypes: vec![SubType::Beast, SubType::Noble],
6507- supertypes: vec![SuperType::Legendary],
--
6893- rarity: Rarity::Common,
6894- abilities: vec![
6895- Ability::spell(id,
6896: vec![Effect::Custom("Counter target spell. Draw a card, then discard a card.".into())],
6897- TargetSpec::None),
6898- ],
6899- ..Default::default() }
```
## Assistant
### Tool: Grep
**Args:**
```json
{
"-C": 2,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/ecl.rs",
"pattern": "Custom.*draw a card"
}
```
## Assistant
**Result** (success):
```
1644- "Whenever an opponent casts a spell during your turn, you may pay 1 life. If you do, draw a card.",
1645- vec![EventType::SpellCast],
1646: vec![Effect::Custom("Pay 1 life to draw a card.".into())],
1647- TargetSpec::None),
1648- ],
--
3979- "When this creature enters, draw a card.",
3980- vec![EventType::EnteredTheBattlefield],
3981: vec![Effect::Custom("When this creature enters, draw a card.".into())],
3982- TargetSpec::None),
3983- ],
```
## Assistant
## Assistant
Let me get more context on the specific cards that need fixing.
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/fdn.rs",
"limit": 15,
"offset": 2410
}
```
## Assistant
**Result** (success):
```
2410→
2411→fn day_of_judgment(id: ObjectId, owner: PlayerId) -> CardData {
2412→ // Sorcery {2}{W}{W}. Destroy all creatures.
2413→ CardData { id, owner, name: "Day of Judgment".into(), mana_cost: ManaCost::parse("{2}{W}{W}"),
2414→ card_types: vec![CardType::Sorcery], rarity: Rarity::Rare,
2415→ abilities: vec![
2416→ Ability::spell(id,
2417→ vec![Effect::Custom("Destroy all creatures.".into())],
2418→ TargetSpec::None),
2419→ ],
2420→ ..Default::default() }
2421→}
2422→
2423→fn angelic_edict(id: ObjectId, owner: PlayerId) -> CardData {
2424→ // Sorcery {4}{W}. Exile target creature or enchantment.
```
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/fdn.rs",
"limit": 15,
"offset": 636
}
```
## Assistant
**Result** (success):
```
636→fn diregraf_ghoul(id: ObjectId, owner: PlayerId) -> CardData {
637→ // Diregraf Ghoul enters the battlefield tapped.
638→ CardData { id, owner, name: "Diregraf Ghoul".into(), mana_cost: ManaCost::parse("{B}"),
639→ card_types: vec![CardType::Creature], subtypes: vec![SubType::Zombie],
640→ power: Some(2), toughness: Some(2), rarity: Rarity::Uncommon,
641→ abilities: vec![
642→ Ability::static_ability(id,
643→ "Diregraf Ghoul enters the battlefield tapped.",
644→ vec![StaticEffect::Custom("Enters tapped.".into())]),
645→ ],
646→ ..Default::default() }
647→}
648→
649→fn dragon_trainer(id: ObjectId, owner: PlayerId) -> CardData {
650→ CardData { id, owner, name: "Dragon Trainer".into(), mana_cost: ManaCost::parse("{3}{R}{R}"),
```
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/fdn.rs",
"limit": 25,
"offset": 6327
}
```
## Assistant
**Result** (success):
```
6327→ ],
6328→ ..Default::default() }
6329→}
6330→
6331→fn icewind_elemental(id: ObjectId, owner: PlayerId) -> CardData {
6332→ CardData { id, owner, name: "Icewind Elemental".into(), mana_cost: ManaCost::parse("{4}{U}"),
6333→ card_types: vec![CardType::Creature],
6334→ subtypes: vec![SubType::Elemental],
6335→ power: Some(3), toughness: Some(4),
6336→ keywords: KeywordAbilities::FLYING,
6337→ rarity: Rarity::Common,
6338→ abilities: vec![
6339→ Ability::triggered(id,
6340→ "When this creature enters, draw a card, then discard a card.",
6341→ vec![EventType::EnteredTheBattlefield],
6342→ vec![Effect::Custom("When this creature enters, draw a card, then discard a card.".into())],
6343→ TargetSpec::None),
6344→ ],
6345→ ..Default::default() }
6346→}
6347→
6348→fn imprisoned_in_the_moon(id: ObjectId, owner: PlayerId) -> CardData {
6349→ CardData { id, owner, name: "Imprisoned in the Moon".into(), mana_cost: ManaCost::parse("{2}{U}"),
6350→ card_types: vec![CardType::Enchantment],
6351→ subtypes: vec![SubType::Aura],
```
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/ecl.rs",
"limit": 20,
"offset": 3970
}
```
## Assistant
**Result** (success):
```
3970→
3971→fn mistmeadow_council(id: ObjectId, owner: PlayerId) -> CardData {
3972→ CardData { id, owner, name: "Mistmeadow Council".into(), mana_cost: ManaCost::parse("{4}{G}"),
3973→ card_types: vec![CardType::Creature],
3974→ subtypes: vec![SubType::Custom("Kithkin".into()), SubType::Advisor],
3975→ power: Some(4), toughness: Some(3),
3976→ rarity: Rarity::Common,
3977→ abilities: vec![
3978→ Ability::triggered(id,
3979→ "When this creature enters, draw a card.",
3980→ vec![EventType::EnteredTheBattlefield],
3981→ vec![Effect::Custom("When this creature enters, draw a card.".into())],
3982→ TargetSpec::None),
3983→ ],
3984→ ..Default::default() }
3985→}
3986→
3987→fn moon_vigil_adherents(id: ObjectId, owner: PlayerId) -> CardData {
3988→ CardData { id, owner, name: "Moon-Vigil Adherents".into(), mana_cost: ManaCost::parse("{2}{G}{G}"),
3989→ card_types: vec![CardType::Creature],
```
## Assistant
### Tool: Grep
**Args:**
```json
{
"-C": 5,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/ecl.rs",
"pattern": "can't block this turn"
}
```
## Assistant
**Result** (success):
```
424- Ability::enters_battlefield_triggered(id,
425- "Brambleback Brute enters with two -1/-1 counters on it.",
426- vec![Effect::add_counters("-1/-1", 2)],
427- TargetSpec::None),
428- Ability::activated(id,
429: "{1}{R}: Target creature can't block this turn.",
430- vec![Cost::pay_mana("{1}{R}")],
431: vec![Effect::Custom("Target creature can't block this turn.".into())],
432- TargetSpec::Creature),
433- ],
434- ..Default::default() }
435-}
436-
```
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/ecl.rs",
"limit": 30,
"offset": 340
}
```
## Assistant
**Result** (success):
```
340→ vec![Effect::lose_life(1), Effect::create_token("1/1 Faerie Rogue with flying", 1)],
341→ TargetSpec::None),
342→ ],
343→ ..Default::default() }
344→}
345→
346→fn blighted_blackthorn(id: ObjectId, owner: PlayerId) -> CardData {
347→ // 3/7 Treefolk Warlock for {4}{B}. (ETB/attacks: blight 2 => draw + lose 1 life)
348→ CardData { id, owner, name: "Blighted Blackthorn".into(), mana_cost: ManaCost::parse("{4}{B}"),
349→ card_types: vec![CardType::Creature], subtypes: vec![SubType::Treefolk, SubType::Warlock],
350→ power: Some(3), toughness: Some(7), rarity: Rarity::Common,
351→ abilities: vec![
352→ Ability::enters_battlefield_triggered(id,
353→ "When Blighted Blackthorn enters or attacks, put two -1/-1 counters on it, then draw a card and lose 1 life.",
354→ vec![Effect::Custom("Put two -1/-1 counters on Blighted Blackthorn.".into()), Effect::draw_cards(1), Effect::lose_life(1)],
355→ TargetSpec::None),
356→ Ability::attacks_triggered(id,
357→ "Whenever Blighted Blackthorn attacks, put two -1/-1 counters on it, then draw a card and lose 1 life.",
358→ vec![Effect::Custom("Put two -1/-1 counters on Blighted Blackthorn.".into()), Effect::draw_cards(1), Effect::lose_life(1)],
359→ TargetSpec::None),
360→ ],
361→ ..Default::default() }
362→}
363→
364→fn bloom_tender(id: ObjectId, owner: PlayerId) -> CardData {
365→ // 1/1 Elf Druid for {1}{G}. (T: add mana for each color among your permanents)
366→ CardData { id, owner, name: "Bloom Tender".into(), mana_cost: ManaCost::parse("{1}{G}"),
367→ card_types: vec![CardType::Creature], subtypes: vec![SubType::Elf, SubType::Druid],
368→ power: Some(1), toughness: Some(1), rarity: Rarity::Rare,
369→ abilities: vec![
```
## Assistant
## Assistant
Let me check how `AddCounters` and `EntersTapped` are handled in game.rs, and look at the remaining card contexts.
## Assistant
### Tool: Grep
**Args:**
```json
{
"-C": 5,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"pattern": "AddCounters"
}
```
## Assistant
**Result** (success):
```
1034- if let Some(player) = self.state.players.get_mut(&opp) {
1035- player.life -= *amount as i32;
1036- }
1037- }
1038- }
1039: Effect::AddCounters { counter_type, count } => {
1040- let ct = crate::counters::CounterType::from_name(counter_type);
1041- for &target_id in targets {
1042- if let Some(perm) = self.state.battlefield.get_mut(target_id) {
1043- perm.add_counters(ct.clone(), *count);
1044- }
```
## Assistant
### Tool: Grep
**Args:**
```json
{
"-C": 5,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"pattern": "EntersTapped"
}
```
## Assistant
**Result** (success):
```
No matches found
```
## Assistant
### Tool: Grep
**Args:**
```json
{
"-C": 5,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"pattern": "RemoveCounters"
}
```
## Assistant
**Result** (success):
```
1283- if let Some(perm) = self.state.battlefield.get_mut(id) {
1284- perm.apply_damage(*amount);
1285- }
1286- }
1287- }
1288: Effect::RemoveCounters { counter_type, count } => {
1289- let ct = crate::counters::CounterType::from_name(counter_type);
1290- for &target_id in targets {
1291- if let Some(perm) = self.state.battlefield.get_mut(target_id) {
1292- perm.counters.remove(&ct, *count);
1293- }
```
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/ecl.rs",
"limit": 50,
"offset": 1428
}
```
## Assistant
**Result** (success):
```
1428→}
1429→
1430→fn sourbread_auntie(id: ObjectId, owner: PlayerId) -> CardData {
1431→ // 4/3 Goblin Warrior for {2}{R}{R}. (ETB: blight 2 => create two Goblin tokens)
1432→ CardData { id, owner, name: "Sourbread Auntie".into(), mana_cost: ManaCost::parse("{2}{R}{R}"),
1433→ card_types: vec![CardType::Creature], subtypes: vec![SubType::Goblin, SubType::Warrior],
1434→ power: Some(4), toughness: Some(3), rarity: Rarity::Uncommon,
1435→ abilities: vec![
1436→ Ability::enters_battlefield_triggered(id,
1437→ "When Sourbread Auntie enters, put two -1/-1 counters on it and create two 1/1 black and red Goblin creature tokens.",
1438→ vec![Effect::Custom("Put two -1/-1 counters on Sourbread Auntie.".into()), Effect::create_token("1/1 Goblin", 2)],
1439→ TargetSpec::None),
1440→ ],
1441→ ..Default::default() }
1442→}
1443→
1444→fn squawkroaster(id: ObjectId, owner: PlayerId) -> CardData {
1445→ // */4 Elemental for {3}{R}. Double strike. (Vivid: power = colors among permanents)
1446→ CardData { id, owner, name: "Squawkroaster".into(), mana_cost: ManaCost::parse("{3}{R}"),
1447→ card_types: vec![CardType::Creature], subtypes: vec![SubType::Elemental],
1448→ power: Some(0), toughness: Some(4), keywords: KeywordAbilities::DOUBLE_STRIKE,
1449→ rarity: Rarity::Rare,
1450→ abilities: vec![
1451→ Ability::static_ability(id,
1452→ "Vivid — Squawkroaster's power is equal to the number of colors among permanents you control.",
1453→ vec![StaticEffect::Custom("Power = colors among your permanents.".into())]),
1454→ ],
1455→ ..Default::default() }
1456→}
1457→
1458→fn sting_slinger(id: ObjectId, owner: PlayerId) -> CardData {
1459→ // 3/3 Goblin Warrior for {2}{R}. ({1}{R}, T, blight 1: 2 damage to opponents)
1460→ CardData { id, owner, name: "Sting-Slinger".into(), mana_cost: ManaCost::parse("{2}{R}"),
1461→ card_types: vec![CardType::Creature], subtypes: vec![SubType::Goblin, SubType::Warrior],
1462→ power: Some(3), toughness: Some(3), rarity: Rarity::Uncommon,
1463→ abilities: vec![
1464→ Ability::activated(id,
1465→ "{1}{R}, {T}, Put a -1/-1 counter on Sting-Slinger: It deals 2 damage to each opponent.",
1466→ vec![Cost::pay_mana("{1}{R}"), Cost::tap_self()],
1467→ vec![Effect::Custom("Put a -1/-1 counter on Sting-Slinger.".into()), Effect::damage_opponents(2)],
1468→ TargetSpec::None),
1469→ ],
1470→ ..Default::default() }
1471→}
1472→
1473→fn stoic_grove_guide(id: ObjectId, owner: PlayerId) -> CardData {
1474→ // 5/4 Elf Druid for {4}{B/G}. (From graveyard: create 2/2 Elf token)
1475→ CardData { id, owner, name: "Stoic Grove-Guide".into(), mana_cost: ManaCost::parse("{4}{B/G}"),
1476→ card_types: vec![CardType::Creature], subtypes: vec![SubType::Elf, SubType::Druid],
1477→ power: Some(5), toughness: Some(4), rarity: Rarity::Common,
```
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/ecl.rs",
"limit": 15,
"offset": 985
}
```
## Assistant
**Result** (success):
```
985→ abilities: vec![
986→ Ability::enters_battlefield_triggered(id,
987→ "Heirloom Auntie enters with two -1/-1 counters on it.",
988→ vec![Effect::add_counters("-1/-1", 2)],
989→ TargetSpec::None),
990→ Ability::any_creature_dies_triggered(id,
991→ "Whenever another creature you control dies, surveil 1 and remove a -1/-1 counter from Heirloom Auntie.",
992→ vec![Effect::scry(1), Effect::Custom("Remove a -1/-1 counter from Heirloom Auntie.".into())],
993→ TargetSpec::None),
994→ ],
995→ ..Default::default() }
996→}
997→
998→fn iron_shield_elf(id: ObjectId, owner: PlayerId) -> CardData {
999→ // 3/1 Elf Warrior for {1}{B}. (Discard: indestructible + tap)
```
## Assistant
## Assistant
Now let me check how AddCounters resolves when `TargetSpec::None` — the key question for batch 2d.
## Assistant
### Tool: Grep
**Args:**
```json
{
"-n": true,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"pattern": "fn resolve_effect|fn resolve_ability"
}
```
## Assistant
**Result** (success):
```
No matches found
```
## Assistant
### Tool: Grep
**Args:**
```json
{
"-n": true,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"pattern": "fn resolve"
}
```
## Assistant
**Result** (success):
```
688: fn resolve_top_of_stack(&mut self) {
```
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"limit": 120,
"offset": 688
}
```
## Assistant
**Result** (success):
```
688→ fn resolve_top_of_stack(&mut self) {
689→ let item = match self.state.stack.pop() {
690→ Some(item) => item,
691→ None => return,
692→ };
693→
694→ if item.countered {
695→ // Countered spells go to graveyard
696→ self.move_card_to_graveyard(item.id, item.controller);
697→ return;
698→ }
699→
700→ // Fizzle check: if the spell/ability has targets and all targets are
701→ // now illegal (left the battlefield, gained hexproof, etc.), it fizzles.
702→ // Note: targets stored as ObjectIds; player targets are tracked separately
703→ // in the SelectedTargets system (targets.rs). This simplified check only
704→ // validates permanent targets on the battlefield.
705→ if !item.targets.is_empty() {
706→ let any_legal = item.targets.iter().any(|&target_id| {
707→ self.state.battlefield.contains(target_id)
708→ || self.state.stack.get(target_id).is_some()
709→ });
710→ if !any_legal {
711→ // All targets are illegal — fizzle
712→ match &item.kind {
713→ crate::zones::StackItemKind::Spell { .. } => {
714→ self.move_card_to_graveyard(item.id, item.controller);
715→ }
716→ crate::zones::StackItemKind::Ability { .. } => {
717→ // Abilities just cease to exist when fizzled
718→ }
719→ }
720→ return;
721→ }
722→ }
723→
724→ match &item.kind {
725→ crate::zones::StackItemKind::Spell { card } => {
726→ if card.is_permanent_card() {
727→ // Register abilities from the card
728→ for ability in &card.abilities {
729→ self.state.ability_store.add(ability.clone());
730→ }
731→ // Permanent spells enter the battlefield
732→ let perm = Permanent::new(card.clone(), item.controller);
733→ self.state.battlefield.add(perm);
734→ self.state.set_zone(item.id, crate::constants::Zone::Battlefield, None);
735→ } else {
736→ // Non-permanent spells: execute effects then go to graveyard
737→ let effects: Vec = card.abilities.iter()
738→ .flat_map(|a| a.effects.clone())
739→ .collect();
740→ let targets = item.targets.clone();
741→ self.execute_effects(&effects, item.controller, &targets);
742→ self.move_card_to_graveyard(item.id, item.controller);
743→ }
744→ }
745→ crate::zones::StackItemKind::Ability { ability_id, .. } => {
746→ // Resolve ability: find its effects and execute them
747→ let ability_data = self.state.ability_store.get(*ability_id).cloned();
748→ if let Some(ability) = ability_data {
749→ let targets = item.targets.clone();
750→ self.execute_effects(&ability.effects, item.controller, &targets);
751→ }
752→ }
753→ }
754→ }
755→
756→ /// Process state-based actions in a loop until no more are found.
757→ pub fn process_state_based_actions(&mut self) {
758→ for _ in 0..MAX_SBA_ITERATIONS {
759→ let sba = self.state.check_state_based_actions();
760→ if !sba.has_actions() {
761→ break;
762→ }
763→ self.apply_state_based_actions(&sba);
764→ }
765→ }
766→
767→ /// Apply the detected state-based actions.
768→ fn apply_state_based_actions(&mut self, sba: &StateBasedActions) {
769→ // Players losing the game
770→ for &pid in &sba.players_losing {
771→ if let Some(player) = self.state.players.get_mut(&pid) {
772→ player.lost = true;
773→ }
774→ }
775→
776→ // Permanents going to graveyard (0 toughness)
777→ for &perm_id in &sba.permanents_to_graveyard {
778→ if let Some(perm) = self.state.battlefield.remove(perm_id) {
779→ let owner = perm.owner();
780→ self.state.ability_store.remove_source(perm_id);
781→ self.move_card_to_graveyard(perm_id, owner);
782→ }
783→ }
784→
785→ // Permanents being destroyed (lethal damage)
786→ for &perm_id in &sba.permanents_to_destroy {
787→ if let Some(perm) = self.state.battlefield.remove(perm_id) {
788→ let owner = perm.owner();
789→ self.state.ability_store.remove_source(perm_id);
790→ self.move_card_to_graveyard(perm_id, owner);
791→ }
792→ }
793→
794→ // Counter annihilation: +1/+1 and -1/-1 counters cancel out
795→ for &perm_id in &sba.counters_to_annihilate {
796→ if let Some(perm) = self.state.battlefield.get_mut(perm_id) {
797→ let p1p1 = perm.counters.get(&CounterType::P1P1);
798→ let m1m1 = perm.counters.get(&CounterType::M1M1);
799→ let to_remove = p1p1.min(m1m1);
800→ if to_remove > 0 {
801→ perm.counters.remove(&CounterType::P1P1, to_remove);
802→ perm.counters.remove(&CounterType::M1M1, to_remove);
803→ }
804→ }
805→ }
806→ }
807→
```
## Assistant
## Assistant
### Tool: Grep
**Args:**
```json
{
"-n": true,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"pattern": "fn execute_effects"
}
```
## Assistant
**Result** (success):
```
948: pub fn execute_effects(&mut self, effects: &[Effect], controller: PlayerId, targets: &[ObjectId]) {
```
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"limit": 120,
"offset": 948
}
```
## Assistant
**Result** (success):
```
948→ pub fn execute_effects(&mut self, effects: &[Effect], controller: PlayerId, targets: &[ObjectId]) {
949→ for effect in effects {
950→ match effect {
951→ Effect::DealDamage { amount } => {
952→ // Deal damage to target permanents.
953→ // Player targeting is handled separately via SelectedTargets.
954→ for &target_id in targets {
955→ if let Some(perm) = self.state.battlefield.get_mut(target_id) {
956→ perm.apply_damage(*amount);
957→ }
958→ }
959→ // If no permanent targets, deal damage to opponents
960→ // (simplified for "deal N damage to target opponent" effects)
961→ if targets.is_empty() {
962→ if let Some(opp_id) = self.state.opponent_of(controller) {
963→ if let Some(opp) = self.state.players.get_mut(&opp_id) {
964→ opp.life -= *amount as i32;
965→ }
966→ }
967→ }
968→ }
969→ Effect::Destroy => {
970→ for &target_id in targets {
971→ if let Some(perm) = self.state.battlefield.get(target_id) {
972→ if !perm.has_indestructible() {
973→ if let Some(perm) = self.state.battlefield.remove(target_id) {
974→ self.state.ability_store.remove_source(target_id);
975→ self.move_card_to_graveyard_inner(target_id, perm.owner());
976→ }
977→ }
978→ }
979→ }
980→ }
981→ Effect::Exile => {
982→ for &target_id in targets {
983→ if self.state.battlefield.remove(target_id).is_some() {
984→ self.state.ability_store.remove_source(target_id);
985→ self.state.exile.exile(target_id);
986→ self.state.set_zone(target_id, crate::constants::Zone::Exile, None);
987→ }
988→ }
989→ }
990→ Effect::Bounce => {
991→ for &target_id in targets {
992→ if let Some(perm) = self.state.battlefield.remove(target_id) {
993→ self.state.ability_store.remove_source(target_id);
994→ let owner = perm.owner();
995→ if let Some(player) = self.state.players.get_mut(&owner) {
996→ player.hand.add(target_id);
997→ }
998→ self.state.set_zone(target_id, crate::constants::Zone::Hand, Some(owner));
999→ }
1000→ }
1001→ }
1002→ Effect::DrawCards { count } => {
1003→ self.draw_cards(controller, *count);
1004→ }
1005→ Effect::GainLife { amount } => {
1006→ if let Some(player) = self.state.players.get_mut(&controller) {
1007→ player.life += *amount as i32;
1008→ }
1009→ }
1010→ Effect::LoseLife { amount } => {
1011→ // Controller loses life (target player effects will use
1012→ // SelectedTargets for proper player targeting)
1013→ if let Some(player) = self.state.players.get_mut(&controller) {
1014→ player.life -= *amount as i32;
1015→ }
1016→ }
1017→ Effect::LoseLifeOpponents { amount } => {
1018→ let opponents: Vec = self.state.turn_order.iter()
1019→ .filter(|&&id| id != controller)
1020→ .copied()
1021→ .collect();
1022→ for opp in opponents {
1023→ if let Some(player) = self.state.players.get_mut(&opp) {
1024→ player.life -= *amount as i32;
1025→ }
1026→ }
1027→ }
1028→ Effect::DealDamageOpponents { amount } => {
1029→ let opponents: Vec = self.state.turn_order.iter()
1030→ .filter(|&&id| id != controller)
1031→ .copied()
1032→ .collect();
1033→ for opp in opponents {
1034→ if let Some(player) = self.state.players.get_mut(&opp) {
1035→ player.life -= *amount as i32;
1036→ }
1037→ }
1038→ }
1039→ Effect::AddCounters { counter_type, count } => {
1040→ let ct = crate::counters::CounterType::from_name(counter_type);
1041→ for &target_id in targets {
1042→ if let Some(perm) = self.state.battlefield.get_mut(target_id) {
1043→ perm.add_counters(ct.clone(), *count);
1044→ }
1045→ }
1046→ }
1047→ Effect::BoostUntilEndOfTurn { power, toughness: _ } => {
1048→ // Simplified: directly modify counters (proper implementation
1049→ // would use continuous effects that expire at end of turn)
1050→ for &target_id in targets {
1051→ if let Some(perm) = self.state.battlefield.get_mut(target_id) {
1052→ if *power > 0 {
1053→ perm.add_counters(CounterType::P1P1, *power as u32);
1054→ }
1055→ // Note: This is a simplification; real boost until EOT
1056→ // uses continuous effects, not counters
1057→ }
1058→ }
1059→ }
1060→ Effect::TapTarget => {
1061→ for &target_id in targets {
1062→ if let Some(perm) = self.state.battlefield.get_mut(target_id) {
1063→ perm.tap();
1064→ }
1065→ }
1066→ }
1067→ Effect::UntapTarget => {
```
## Assistant
## Assistant
Let me check how the stack item stores source information.
## Assistant
### Tool: Grep
**Args:**
```json
{
"-C": 3,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/zones.rs",
"pattern": "struct StackItem|source_id|pub id:"
}
```
## Assistant
**Result** (success):
```
236-#[derive(Clone, Debug, Serialize, Deserialize)]
237-pub struct ExileZone {
238- /// The source that created this exile zone.
239: pub source_id: ObjectId,
240- /// Human-readable name.
241- pub name: String,
242- /// Cards in this exile zone.
--
266- }
267-
268- /// Exile a card to a named zone (e.g. for "exile until this leaves the battlefield").
269: pub fn exile_to_zone(&mut self, card_id: ObjectId, source_id: ObjectId, zone_name: &str) {
270: let zone = self.zones.entry(source_id).or_insert_with(|| ExileZone {
271: source_id,
272- name: zone_name.to_string(),
273- cards: Vec::new(),
274- });
--
291- }
292-
293- /// Get all cards in a named exile zone.
294: pub fn get_zone(&self, source_id: ObjectId) -> Option<&ExileZone> {
295: self.zones.get(&source_id)
296- }
297-
298- /// Check if a card is in exile (any zone).
--
428-
429-/// An item on the stack (a spell or ability waiting to resolve).
430-#[derive(Clone, Debug, Serialize, Deserialize)]
431:pub struct StackItem {
432- /// Unique ID for this stack object.
433: pub id: ObjectId,
434- /// The kind of stack object (spell or ability).
435- pub kind: StackItemKind,
436- /// Who controls this stack object.
--
452- /// An activated or triggered ability.
453- Ability {
454- /// The source permanent or card.
455: source_id: ObjectId,
456- /// The ability's unique ID.
457- ability_id: AbilityId,
458- /// Human-readable description.
```
## Assistant
The `StackItemKind::Ability` has a `source_id`. I need to pass this through to `execute_effects` so `AddCounters` and `RemoveCounters` can fall back to the source when there are no targets. Let me look at how the stack item passes data during resolution.
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"limit": 35,
"offset": 724
}
```
## Assistant
**Result** (success):
```
724→ match &item.kind {
725→ crate::zones::StackItemKind::Spell { card } => {
726→ if card.is_permanent_card() {
727→ // Register abilities from the card
728→ for ability in &card.abilities {
729→ self.state.ability_store.add(ability.clone());
730→ }
731→ // Permanent spells enter the battlefield
732→ let perm = Permanent::new(card.clone(), item.controller);
733→ self.state.battlefield.add(perm);
734→ self.state.set_zone(item.id, crate::constants::Zone::Battlefield, None);
735→ } else {
736→ // Non-permanent spells: execute effects then go to graveyard
737→ let effects: Vec = card.abilities.iter()
738→ .flat_map(|a| a.effects.clone())
739→ .collect();
740→ let targets = item.targets.clone();
741→ self.execute_effects(&effects, item.controller, &targets);
742→ self.move_card_to_graveyard(item.id, item.controller);
743→ }
744→ }
745→ crate::zones::StackItemKind::Ability { ability_id, .. } => {
746→ // Resolve ability: find its effects and execute them
747→ let ability_data = self.state.ability_store.get(*ability_id).cloned();
748→ if let Some(ability) = ability_data {
749→ let targets = item.targets.clone();
750→ self.execute_effects(&ability.effects, item.controller, &targets);
751→ }
752→ }
753→ }
754→ }
755→
756→ /// Process state-based actions in a loop until no more are found.
757→ pub fn process_state_based_actions(&mut self) {
758→ for _ in 0..MAX_SBA_ITERATIONS {
```
## Assistant
## Assistant
Let me check all callers of `execute_effects` to plan the source_id plumbing.
## Assistant
### Tool: Grep
**Args:**
```json
{
"-n": true,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"pattern": "execute_effects\\("
}
```
## Assistant
**Result** (success):
```
741: self.execute_effects(&effects, item.controller, &targets);
750: self.execute_effects(&ability.effects, item.controller, &targets);
948: pub fn execute_effects(&mut self, effects: &[Effect], controller: PlayerId, targets: &[ObjectId]) {
2078: game.execute_effects(&[Effect::DrawCards { count: 2 }], p1, &[]);
2108: game.execute_effects(&[Effect::GainLife { amount: 5 }], p1, &[]);
2133: game.execute_effects(&[Effect::lose_life_opponents(3)], p1, &[]);
2171: game.execute_effects(&[Effect::Exile], p1, &[bear_id]);
2209: game.execute_effects(&[Effect::Bounce], p1, &[bear_id]);
```
## Assistant
## Assistant
Let me understand how triggered abilities get their source_id onto the stack.
## Assistant
### Tool: Grep
**Args:**
```json
{
"-C": 10,
"-n": true,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"pattern": "check_triggers|process_triggers|push_triggered"
}
```
## Assistant
**Result** (success):
```
No matches found
```
## Assistant
### Tool: Grep
**Args:**
```json
{
"-n": true,
"head_limit": 30,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"pattern": "trigger"
}
```
## Assistant
**Result** (success):
```
10:// 4. Put triggered abilities on the stack
342: /// Process the current step: turn-based actions, SBAs, triggers, priority.
353: // -- Handle triggered abilities --
354: // TODO: Put triggered abilities on the stack (task #13)
[Showing results with pagination = limit: 30, offset: 0]
```
## Assistant
### Tool: Grep
**Args:**
```json
{
"-n": true,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"pattern": "trigger|Trigger"
}
```
## Assistant
**Result** (success):
```
10:// 4. Put triggered abilities on the stack
342: /// Process the current step: turn-based actions, SBAs, triggers, priority.
353: // -- Handle triggered abilities --
354: // TODO: Put triggered abilities on the stack (task #13)
```
## Assistant
## Assistant
Let me check existing `EntersTapped` usage in cards and how it's handled by the engine.
## Assistant
### Tool: Grep
**Args:**
```json
{
"-n": true,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets",
"pattern": "EntersTapped"
}
```
## Assistant
**Result** (success):
```
mtg-rl/mtg-cards/src/sets/tdm.rs:1322: vec![StaticEffect::EntersTapped { filter: "self".into() }]),
mtg-rl/mtg-cards/src/sets/tdm.rs:1378: vec![StaticEffect::EntersTapped { filter: "self".into() }]),
mtg-rl/mtg-cards/src/sets/tdm.rs:2397: vec![StaticEffect::EntersTapped { filter: "self".into() }]),
mtg-rl/mtg-cards/src/sets/fdn.rs:2860: vec![StaticEffect::EntersTapped { filter: "self".into() }]),
mtg-rl/mtg-cards/src/sets/fdn.rs:2943: vec![StaticEffect::EntersTapped { filter: "self".into() }]),
mtg-rl/mtg-cards/src/sets/fdn.rs:2977: vec![StaticEffect::EntersTapped { filter: "self".into() }]),
mtg-rl/mtg-cards/src/sets/fdn.rs:2995: vec![StaticEffect::EntersTapped { filter: "self".into() }]),
```
## Assistant
Good — `EntersTapped { filter: "self".into() }` is the established pattern. Now let me look at the Sting-Slinger cost issue and understand how Blight cost works in game.rs.
## Assistant
### Tool: Grep
**Args:**
```json
{
"-C": 5,
"-n": true,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"pattern": "Blight"
}
```
## Assistant
**Result** (success):
```
No matches found
```
## Assistant
### Tool: Grep
**Args:**
```json
{
"-n": true,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"pattern": "pay_costs|check_costs|fn pay"
}
```
## Assistant
**Result** (success):
```
822: if !self.pay_costs(player_id, source_id, &ability.costs) {
858: if !self.pay_costs(player_id, source_id, &ability.costs) {
871: fn pay_costs(&mut self, player_id: PlayerId, source_id: ObjectId, costs: &[Cost]) -> bool {
2216: fn pay_costs_tap_and_sacrifice() {
2246: assert!(game.pay_costs(p1, source_id, &[Cost::TapSelf]));
2251: assert!(!game.pay_costs(p1, source_id, &[Cost::TapSelf]));
2254: assert!(game.pay_costs(p1, source_id, &[Cost::SacrificeSelf]));
```
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"limit": 80,
"offset": 871
}
```
## Assistant
**Result** (success):
```
871→ fn pay_costs(&mut self, player_id: PlayerId, source_id: ObjectId, costs: &[Cost]) -> bool {
872→ for cost in costs {
873→ match cost {
874→ Cost::TapSelf => {
875→ if let Some(perm) = self.state.battlefield.get_mut(source_id) {
876→ if perm.tapped {
877→ return false; // Already tapped, can't pay
878→ }
879→ perm.tap();
880→ } else {
881→ return false;
882→ }
883→ }
884→ Cost::Mana(mana) => {
885→ if let Some(player) = self.state.players.get_mut(&player_id) {
886→ if !player.mana_pool.try_pay(mana) {
887→ return false;
888→ }
889→ } else {
890→ return false;
891→ }
892→ }
893→ Cost::PayLife(amount) => {
894→ if let Some(player) = self.state.players.get_mut(&player_id) {
895→ if player.life < *amount as i32 {
896→ return false;
897→ }
898→ player.life -= *amount as i32;
899→ } else {
900→ return false;
901→ }
902→ }
903→ Cost::SacrificeSelf => {
904→ if let Some(perm) = self.state.battlefield.remove(source_id) {
905→ self.state.ability_store.remove_source(source_id);
906→ let owner = perm.owner();
907→ if let Some(player) = self.state.players.get_mut(&owner) {
908→ player.graveyard.add(source_id);
909→ self.state.set_zone(source_id, crate::constants::Zone::Graveyard, Some(owner));
910→ }
911→ } else {
912→ return false;
913→ }
914→ }
915→ Cost::Discard(count) => {
916→ let hand: Vec = self.state.players.get(&player_id)
917→ .map(|p| p.hand.iter().copied().collect())
918→ .unwrap_or_default();
919→ if hand.len() < *count as usize {
920→ return false;
921→ }
922→ let view = crate::decision::GameView::placeholder();
923→ let to_discard = if let Some(dm) = self.decision_makers.get_mut(&player_id) {
924→ dm.choose_discard(&view, &hand, *count as usize)
925→ } else {
926→ hand.iter().rev().take(*count as usize).copied().collect()
927→ };
928→ for card_id in to_discard {
929→ if let Some(player) = self.state.players.get_mut(&player_id) {
930→ player.hand.remove(card_id);
931→ }
932→ if let Some(player) = self.state.players.get_mut(&player_id) {
933→ player.graveyard.add(card_id);
934→ self.state.set_zone(card_id, crate::constants::Zone::Graveyard, Some(player_id));
935→ }
936→ }
937→ }
938→ _ => {
939→ // Other costs (exile from hand, remove counters, sacrifice other, etc.)
940→ // will be implemented as cards need them
941→ }
942→ }
943→ }
944→ true
945→ }
946→
947→ /// Execute a list of effects for a controller with given targets.
948→ pub fn execute_effects(&mut self, effects: &[Effect], controller: PlayerId, targets: &[ObjectId]) {
949→ for effect in effects {
950→ match effect {
```
## Assistant
## Assistant
Let me check the remaining cards I found and check for more matches.
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/ecl.rs",
"limit": 20,
"offset": 707
}
```
## Assistant
**Result** (success):
```
707→ abilities: vec![
708→ Ability::enters_battlefield_triggered(id,
709→ "Encumbered Reejerey enters with three -1/-1 counters on it.",
710→ vec![Effect::add_counters("-1/-1", 3)],
711→ TargetSpec::None),
712→ Ability::triggered(id,
713→ "Whenever Encumbered Reejerey becomes tapped, remove a -1/-1 counter from it.",
714→ vec![EventType::Tapped],
715→ vec![Effect::Custom("Remove a -1/-1 counter from Encumbered Reejerey.".into())],
716→ TargetSpec::None),
717→ ],
718→ ..Default::default() }
719→}
720→
721→fn enraged_flamecaster(id: ObjectId, owner: PlayerId) -> CardData {
722→ // 3/2 Elemental Sorcerer for {2}{R}. Reach. (Spell MV>=4: 2 damage to opponents)
723→ CardData { id, owner, name: "Enraged Flamecaster".into(), mana_cost: ManaCost::parse("{2}{R}"),
724→ card_types: vec![CardType::Creature],
725→ subtypes: vec![SubType::Elemental, SubType::Custom("Sorcerer".into())],
726→ power: Some(3), toughness: Some(2), keywords: KeywordAbilities::REACH,
```
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/ecl.rs",
"limit": 20,
"offset": 1248
}
```
## Assistant
**Result** (success):
```
1248→ power: Some(4), toughness: Some(4), rarity: Rarity::Common,
1249→ abilities: vec![
1250→ Ability::enters_battlefield_triggered(id,
1251→ "Reluctant Dounguard enters with two -1/-1 counters on it.",
1252→ vec![Effect::add_counters("-1/-1", 2)],
1253→ TargetSpec::None),
1254→ Ability::other_creature_etb_triggered(id,
1255→ "Whenever another creature enters under your control, remove a -1/-1 counter from Reluctant Dounguard.",
1256→ vec![Effect::Custom("Remove a -1/-1 counter from Reluctant Dounguard.".into())],
1257→ TargetSpec::None),
1258→ ],
1259→ ..Default::default() }
1260→}
1261→
1262→fn rimekin_recluse(id: ObjectId, owner: PlayerId) -> CardData {
1263→ // 3/2 Elemental Wizard for {2}{U}. (ETB: bounce another creature)
1264→ CardData { id, owner, name: "Rimekin Recluse".into(), mana_cost: ManaCost::parse("{2}{U}"),
1265→ card_types: vec![CardType::Creature], subtypes: vec![SubType::Elemental, SubType::Wizard],
1266→ power: Some(3), toughness: Some(2), rarity: Rarity::Common,
1267→ abilities: vec![
```
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/ecl.rs",
"limit": 20,
"offset": 2187
}
```
## Assistant
**Result** (success):
```
2187→ abilities: vec![
2188→ Ability::static_ability(id, "Ward {2}",
2189→ vec![StaticEffect::Custom("Ward {2}".into())]),
2190→ Ability::enters_battlefield_triggered(id,
2191→ "This creature enters with five -1/-1 counters on it.",
2192→ vec![Effect::add_counters("-1/-1", 5)],
2193→ TargetSpec::None),
2194→ Ability::triggered(id,
2195→ "Whenever another creature you control enters while this creature has a -1/-1 counter on it, remove a -1/-1 counter from this creature.",
2196→ vec![EventType::EnteredTheBattlefield],
2197→ vec![Effect::Custom("Remove a -1/-1 counter from this creature.".into())],
2198→ TargetSpec::None),
2199→ ],
2200→ ..Default::default() }
2201→}
2202→
2203→fn bristlebane_outrider(id: ObjectId, owner: PlayerId) -> CardData {
2204→ // 3/5 Kithkin Knight for {3}{G}. Can't be blocked by power 2 or less (Daunt).
2205→ // If another creature entered this turn, gets +2/+0.
2206→ CardData { id, owner, name: "Bristlebane Outrider".into(), mana_cost: ManaCost::parse("{3}{G}"),
```
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/ecl.rs",
"limit": 20,
"offset": 1683
}
```
## Assistant
**Result** (success):
```
1683→ // 2/2 Goblin Warrior for {1}{R}. (Begin combat: blight 1 => creature gains haste)
1684→ CardData { id, owner, name: "Warren Torchmaster".into(), mana_cost: ManaCost::parse("{1}{R}"),
1685→ card_types: vec![CardType::Creature], subtypes: vec![SubType::Goblin, SubType::Warrior],
1686→ power: Some(2), toughness: Some(2), rarity: Rarity::Common,
1687→ abilities: vec![
1688→ Ability::triggered(id,
1689→ "At the beginning of combat on your turn, you may put a -1/-1 counter on Warren Torchmaster. If you do, target creature gains haste until end of turn.",
1690→ vec![EventType::BeginCombat],
1691→ vec![Effect::Custom("Put a -1/-1 counter on Warren Torchmaster. Target creature gains haste until end of turn.".into())],
1692→ TargetSpec::Creature),
1693→ ],
1694→ ..Default::default() }
1695→}
1696→
1697→// ── Spells and non-creature permanents ───────────────────────────────────────
1698→
1699→fn appeal_to_eirdu(id: ObjectId, owner: PlayerId) -> CardData {
1700→ // Instant {3}{W}. Convoke. +2/+1 to up to two creatures.
1701→ CardData { id, owner, name: "Appeal to Eirdu".into(), mana_cost: ManaCost::parse("{3}{W}"),
1702→ card_types: vec![CardType::Instant], keywords: KeywordAbilities::CONVOKE,
```
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/fdn.rs",
"limit": 20,
"offset": 6886
}
```
## Assistant
**Result** (success):
```
6886→ ],
6887→ ..Default::default() }
6888→}
6889→
6890→fn refute(id: ObjectId, owner: PlayerId) -> CardData {
6891→ CardData { id, owner, name: "Refute".into(), mana_cost: ManaCost::parse("{1}{U}{U}"),
6892→ card_types: vec![CardType::Instant],
6893→ rarity: Rarity::Common,
6894→ abilities: vec![
6895→ Ability::spell(id,
6896→ vec![Effect::Custom("Counter target spell. Draw a card, then discard a card.".into())],
6897→ TargetSpec::None),
6898→ ],
6899→ ..Default::default() }
6900→}
6901→
6902→fn release_the_dogs(id: ObjectId, owner: PlayerId) -> CardData {
6903→ CardData { id, owner, name: "Release the Dogs".into(), mana_cost: ManaCost::parse("{3}{W}"),
6904→ card_types: vec![CardType::Sorcery],
6905→ rarity: Rarity::Common,
```
## Assistant
## Assistant
Let me check for any other `StaticEffect::Custom("Enters tapped")` patterns across all sets.
## Assistant
### Tool: Grep
**Args:**
```json
{
"-n": true,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets",
"pattern": "Custom\\(\"Enters tapped"
}
```
## Assistant
**Result** (success):
```
mtg-rl/mtg-cards/src/sets/tdm.rs:2110: vec![StaticEffect::Custom("Enters tapped unless you control Plains or Island.".into())]),
mtg-rl/mtg-cards/src/sets/tdm.rs:2153: vec![StaticEffect::Custom("Enters tapped unless you control Swamp or Mountain.".into())]),
mtg-rl/mtg-cards/src/sets/fdn.rs:644: vec![StaticEffect::Custom("Enters tapped.".into())]),
```
## Assistant
Only the Diregraf Ghoul has the simple "Enters tapped" Custom — the TDM ones are conditional (batch 6). Good.
Now I have the full picture. Let me also check what the `RemoveCounters` match arm looks like more carefully and read the rest of `execute_effects`.
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"limit": 120,
"offset": 1066
}
```
## Assistant
**Result** (success):
```
1066→ }
1067→ Effect::UntapTarget => {
1068→ for &target_id in targets {
1069→ if let Some(perm) = self.state.battlefield.get_mut(target_id) {
1070→ perm.untap();
1071→ }
1072→ }
1073→ }
1074→ Effect::CounterSpell => {
1075→ // Counter first target on the stack
1076→ for &target_id in targets {
1077→ if let Some(stack_item) = self.state.stack.remove(target_id) {
1078→ match &stack_item.kind {
1079→ crate::zones::StackItemKind::Spell { .. } => {
1080→ self.move_card_to_graveyard_inner(stack_item.id, stack_item.controller);
1081→ }
1082→ _ => {} // Countered abilities just vanish
1083→ }
1084→ }
1085→ }
1086→ }
1087→ Effect::AddMana { mana } => {
1088→ if let Some(player) = self.state.players.get_mut(&controller) {
1089→ player.mana_pool.add(*mana, None, false);
1090→ }
1091→ }
1092→ Effect::DiscardCards { count } => {
1093→ // Controller discards (simplified: discard from the back of hand)
1094→ let hand: Vec = self.state.players.get(&controller)
1095→ .map(|p| p.hand.iter().copied().collect())
1096→ .unwrap_or_default();
1097→ let view = crate::decision::GameView::placeholder();
1098→ let to_discard = if let Some(dm) = self.decision_makers.get_mut(&controller) {
1099→ dm.choose_discard(&view, &hand, *count as usize)
1100→ } else {
1101→ hand.iter().rev().take(*count as usize).copied().collect()
1102→ };
1103→ for card_id in to_discard {
1104→ if let Some(player) = self.state.players.get_mut(&controller) {
1105→ player.hand.remove(card_id);
1106→ }
1107→ self.move_card_to_graveyard_inner(card_id, controller);
1108→ }
1109→ }
1110→ Effect::Mill { count } => {
1111→ for _ in 0..*count {
1112→ let card_id = self.state.players.get_mut(&controller)
1113→ .and_then(|p| p.library.draw());
1114→ if let Some(card_id) = card_id {
1115→ self.move_card_to_graveyard_inner(card_id, controller);
1116→ }
1117→ }
1118→ }
1119→ Effect::CreateToken { token_name, count } => {
1120→ for _ in 0..*count {
1121→ // Create a minimal token permanent
1122→ let token_id = ObjectId::new();
1123→ let mut card = CardData::new(token_id, controller, token_name);
1124→ card.card_types = vec![crate::constants::CardType::Creature];
1125→ // Parse token stats from name (e.g. "4/4 Dragon with flying")
1126→ let (p, t, kw) = Self::parse_token_stats(token_name);
1127→ card.power = Some(p);
1128→ card.toughness = Some(t);
1129→ card.keywords = kw;
1130→ let perm = Permanent::new(card, controller);
1131→ self.state.battlefield.add(perm);
1132→ self.state.set_zone(token_id, crate::constants::Zone::Battlefield, None);
1133→ }
1134→ }
1135→ Effect::Scry { count } => {
1136→ // Scry N: look at top N cards, put any number on bottom in any order,
1137→ // rest on top in any order. Simplified: AI picks which to bottom.
1138→ if let Some(player) = self.state.players.get(&controller) {
1139→ let top_cards: Vec = player.library.peek(*count as usize).to_vec();
1140→ if !top_cards.is_empty() {
1141→ let view = crate::decision::GameView::placeholder();
1142→ let to_bottom = if let Some(dm) = self.decision_makers.get_mut(&controller) {
1143→ // Ask AI which cards to put on bottom (0 to all)
1144→ dm.choose_cards_to_put_back(&view, &top_cards, 0)
1145→ } else {
1146→ // Default: put nothing on bottom (keep all on top)
1147→ Vec::new()
1148→ };
1149→ // Remove selected cards and put them on bottom
1150→ for &card_id in &to_bottom {
1151→ if let Some(player) = self.state.players.get_mut(&controller) {
1152→ player.library.remove(card_id);
1153→ player.library.put_on_bottom(card_id);
1154→ }
1155→ }
1156→ }
1157→ }
1158→ }
1159→ Effect::ReturnFromGraveyard => {
1160→ // Return target card from graveyard to owner's hand
1161→ for &target_id in targets {
1162→ // Find which player's graveyard contains this card
1163→ let owner = self.state.find_card_owner_in_graveyard(target_id);
1164→ if let Some(owner_id) = owner {
1165→ if let Some(player) = self.state.players.get_mut(&owner_id) {
1166→ if player.graveyard.remove(target_id) {
1167→ player.hand.add(target_id);
1168→ self.state.set_zone(target_id, crate::constants::Zone::Hand, Some(owner_id));
1169→ }
1170→ }
1171→ }
1172→ }
1173→ }
1174→ Effect::Reanimate => {
1175→ // Return target card from graveyard to battlefield under controller's control
1176→ for &target_id in targets {
1177→ let owner = self.state.find_card_owner_in_graveyard(target_id);
1178→ if let Some(owner_id) = owner {
1179→ if let Some(player) = self.state.players.get_mut(&owner_id) {
1180→ player.graveyard.remove(target_id);
1181→ }
1182→ // Get card data from the card store to create a permanent
1183→ if let Some(card_data) = self.state.card_store.remove(target_id) {
1184→ let perm = Permanent::new(card_data, controller);
1185→ self.state.battlefield.add(perm);
```
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"limit": 120,
"offset": 1186
}
```
## Assistant
**Result** (success):
```
1186→ self.state.set_zone(target_id, crate::constants::Zone::Battlefield, None);
1187→ }
1188→ }
1189→ }
1190→ }
1191→ Effect::GainKeywordUntilEndOfTurn { keyword } => {
1192→ if let Some(kw) = crate::constants::KeywordAbilities::keyword_from_name(keyword) {
1193→ for &target_id in targets {
1194→ if let Some(perm) = self.state.battlefield.get_mut(target_id) {
1195→ perm.granted_keywords |= kw;
1196→ }
1197→ }
1198→ }
1199→ }
1200→ Effect::GainKeyword { keyword } => {
1201→ // Grant keyword permanently (via granted_keywords, which persists)
1202→ if let Some(kw) = crate::constants::KeywordAbilities::keyword_from_name(keyword) {
1203→ for &target_id in targets {
1204→ if let Some(perm) = self.state.battlefield.get_mut(target_id) {
1205→ perm.granted_keywords |= kw;
1206→ }
1207→ }
1208→ }
1209→ }
1210→ Effect::Indestructible => {
1211→ // Grant indestructible until end of turn
1212→ for &target_id in targets {
1213→ if let Some(perm) = self.state.battlefield.get_mut(target_id) {
1214→ perm.granted_keywords |= crate::constants::KeywordAbilities::INDESTRUCTIBLE;
1215→ }
1216→ }
1217→ }
1218→ Effect::Hexproof => {
1219→ // Grant hexproof until end of turn
1220→ for &target_id in targets {
1221→ if let Some(perm) = self.state.battlefield.get_mut(target_id) {
1222→ perm.granted_keywords |= crate::constants::KeywordAbilities::HEXPROOF;
1223→ }
1224→ }
1225→ }
1226→ Effect::CantBlock => {
1227→ // Target creature can't block this turn.
1228→ // Simplified: grant a pseudo-keyword. The combat system checks
1229→ // granted_keywords for blocking restrictions.
1230→ // For now, we mark via a flag (using removed_keywords to prevent DEFENDER
1231→ // from mattering is not the right approach). We'll use a simple approach:
1232→ // add a "can't block" counter that gets cleared at cleanup.
1233→ for &target_id in targets {
1234→ if let Some(perm) = self.state.battlefield.get_mut(target_id) {
1235→ // Use a sentinel counter to indicate can't block
1236→ perm.add_counters(crate::counters::CounterType::Custom("cant_block".into()), 1);
1237→ }
1238→ }
1239→ }
1240→ Effect::Sacrifice { filter } => {
1241→ // Each opponent sacrifices a permanent matching filter.
1242→ // For "target player sacrifices" effects, this targets the opponent.
1243→ let opponents: Vec = self.state.turn_order.iter()
1244→ .filter(|&&id| id != controller)
1245→ .copied()
1246→ .collect();
1247→ for opp in opponents {
1248→ // Find permanents controlled by opponent matching filter
1249→ let matching: Vec = self.state.battlefield.iter()
1250→ .filter(|p| p.controller == opp && Self::matches_filter(p, filter))
1251→ .map(|p| p.id())
1252→ .collect();
1253→ if let Some(&victim_id) = matching.first() {
1254→ // Simplified: sacrifice the first matching permanent
1255→ // (proper implementation would let opponent choose)
1256→ if let Some(perm) = self.state.battlefield.remove(victim_id) {
1257→ self.state.ability_store.remove_source(victim_id);
1258→ self.move_card_to_graveyard_inner(victim_id, perm.owner());
1259→ }
1260→ }
1261→ }
1262→ }
1263→ Effect::DestroyAll { filter } => {
1264→ // Destroy all permanents matching filter
1265→ let to_destroy: Vec<(ObjectId, PlayerId)> = self.state.battlefield.iter()
1266→ .filter(|p| Self::matches_filter(p, filter) && !p.has_indestructible())
1267→ .map(|p| (p.id(), p.owner()))
1268→ .collect();
1269→ for (id, owner) in to_destroy {
1270→ if self.state.battlefield.remove(id).is_some() {
1271→ self.state.ability_store.remove_source(id);
1272→ self.move_card_to_graveyard_inner(id, owner);
1273→ }
1274→ }
1275→ }
1276→ Effect::DealDamageAll { amount, filter } => {
1277→ // Deal damage to all creatures matching filter
1278→ let matching: Vec = self.state.battlefield.iter()
1279→ .filter(|p| p.is_creature() && Self::matches_filter(p, filter))
1280→ .map(|p| p.id())
1281→ .collect();
1282→ for id in matching {
1283→ if let Some(perm) = self.state.battlefield.get_mut(id) {
1284→ perm.apply_damage(*amount);
1285→ }
1286→ }
1287→ }
1288→ Effect::RemoveCounters { counter_type, count } => {
1289→ let ct = crate::counters::CounterType::from_name(counter_type);
1290→ for &target_id in targets {
1291→ if let Some(perm) = self.state.battlefield.get_mut(target_id) {
1292→ perm.counters.remove(&ct, *count);
1293→ }
1294→ }
1295→ }
1296→ Effect::SearchLibrary { filter } => {
1297→ // Search library for a card matching filter and put it in hand.
1298→ // Simplified: find the first matching card.
1299→ if let Some(player) = self.state.players.get(&controller) {
1300→ let lib_cards: Vec = player.library.iter().copied().collect();
1301→ let found = lib_cards.iter().find(|&&card_id| {
1302→ self.state.card_store.get(card_id)
1303→ .map(|c| Self::card_matches_filter(c, filter))
1304→ .unwrap_or(false)
1305→ }).copied();
```
## Assistant
## Assistant
Good. I now have a complete picture. Let me implement everything. I'll start with the engine change to `execute_effects`, then fix all the cards.
Let me first modify the engine to support "add/remove counters on self" when no targets are provided.
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"limit": 15,
"offset": 740
}
```
## Assistant
**Result** (success):
```
740→ let targets = item.targets.clone();
741→ self.execute_effects(&effects, item.controller, &targets);
742→ self.move_card_to_graveyard(item.id, item.controller);
743→ }
744→ }
745→ crate::zones::StackItemKind::Ability { ability_id, .. } => {
746→ // Resolve ability: find its effects and execute them
747→ let ability_data = self.state.ability_store.get(*ability_id).cloned();
748→ if let Some(ability) = ability_data {
749→ let targets = item.targets.clone();
750→ self.execute_effects(&ability.effects, item.controller, &targets);
751→ }
752→ }
753→ }
754→ }
```
## Assistant
Now I'll make the changes. The approach:
1. Add `source: Option` to `execute_effects`
2. For `AddCounters`/`RemoveCounters`: fall back to source when targets is empty
3. Pass source from resolve callers
4. Fix all cards
## Assistant
### Tool: Edit
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"new_string": " crate::zones::StackItemKind::Ability { ability_id, source_id, .. } => {\n // Resolve ability: find its effects and execute them\n let source = *source_id;\n let ability_data = self.state.ability_store.get(*ability_id).cloned();\n if let Some(ability) = ability_data {\n let targets = item.targets.clone();\n self.execute_effects(&ability.effects, item.controller, &targets, Some(source));\n }\n }",
"old_string": " crate::zones::StackItemKind::Ability { ability_id, .. } => {\n // Resolve ability: find its effects and execute them\n let ability_data = self.state.ability_store.get(*ability_id).cloned();\n if let Some(ability) = ability_data {\n let targets = item.targets.clone();\n self.execute_effects(&ability.effects, item.controller, &targets);\n }\n }",
"replace_all": false
}
```
## Assistant
**Result** (success):
```
The file /mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs has been updated successfully.
```
## Assistant
### Tool: Edit
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"new_string": " let targets = item.targets.clone();\n self.execute_effects(&effects, item.controller, &targets, Some(item.id));\n self.move_card_to_graveyard(item.id, item.controller);",
"old_string": " let targets = item.targets.clone();\n self.execute_effects(&effects, item.controller, &targets);\n self.move_card_to_graveyard(item.id, item.controller);",
"replace_all": false
}
```
## Assistant
**Result** (success):
```
The file /mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs has been updated successfully.
```
## Assistant
Now update the `execute_effects` signature and add the source fallback for AddCounters/RemoveCounters.
## Assistant
### Tool: Edit
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"new_string": " pub fn execute_effects(&mut self, effects: &[Effect], controller: PlayerId, targets: &[ObjectId], source: Option) {",
"old_string": " pub fn execute_effects(&mut self, effects: &[Effect], controller: PlayerId, targets: &[ObjectId]) {",
"replace_all": false
}
```
## Assistant
**Result** (success):
```
The file /mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs has been updated successfully.
```
## Assistant
Now update the AddCounters match arm to fall back to source:
## Assistant
### Tool: Edit
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"new_string": " Effect::AddCounters { counter_type, count } => {\n let ct = crate::counters::CounterType::from_name(counter_type);\n // If no targets, fall back to source (self-targeting counters)\n let effective_targets: Vec = if targets.is_empty() {\n source.into_iter().collect()\n } else {\n targets.to_vec()\n };\n for target_id in effective_targets {\n if let Some(perm) = self.state.battlefield.get_mut(target_id) {\n perm.add_counters(ct.clone(), *count);\n }\n }\n }",
"old_string": " Effect::AddCounters { counter_type, count } => {\n let ct = crate::counters::CounterType::from_name(counter_type);\n for &target_id in targets {\n if let Some(perm) = self.state.battlefield.get_mut(target_id) {\n perm.add_counters(ct.clone(), *count);\n }\n }\n }",
"replace_all": false
}
```
## Assistant
**Result** (success):
```
The file /mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs has been updated successfully.
```
## Assistant
Now update RemoveCounters the same way:
## Assistant
### Tool: Edit
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"new_string": " Effect::RemoveCounters { counter_type, count } => {\n let ct = crate::counters::CounterType::from_name(counter_type);\n // If no targets, fall back to source (self-targeting counters)\n let effective_targets: Vec = if targets.is_empty() {\n source.into_iter().collect()\n } else {\n targets.to_vec()\n };\n for target_id in effective_targets {\n if let Some(perm) = self.state.battlefield.get_mut(target_id) {\n perm.counters.remove(&ct, *count);\n }\n }\n }",
"old_string": " Effect::RemoveCounters { counter_type, count } => {\n let ct = crate::counters::CounterType::from_name(counter_type);\n for &target_id in targets {\n if let Some(perm) = self.state.battlefield.get_mut(target_id) {\n perm.counters.remove(&ct, *count);\n }\n }\n }",
"replace_all": false
}
```
## Assistant
**Result** (success):
```
The file /mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs has been updated successfully.
```
## Assistant
Now update the test callers of `execute_effects`:
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"limit": 30,
"offset": 2070
}
```
## Assistant
**Result** (success):
```
2070→
2071→ let config = GameConfig {
2072→ players: vec![
2073→ PlayerConfig { name: "Alice".to_string(), deck: make_deck(p1) },
2074→ PlayerConfig { name: "Bob".to_string(), deck: make_deck(p2) },
2075→ ],
2076→ starting_life: 20,
2077→ };
2078→
2079→ let mut game = Game::new_two_player(
2080→ config,
2081→ vec![
2082→ (p1, Box::new(AlwaysPassPlayer)),
2083→ (p2, Box::new(AlwaysPassPlayer)),
2084→ ],
2085→ );
2086→
2087→ let initial_hand = game.state.players.get(&p1).unwrap().hand.len();
2088→ let initial_library = game.state.players.get(&p1).unwrap().library.len();
2089→
2090→ // Execute a draw 2 effect
2091→ game.execute_effects(&[Effect::DrawCards { count: 2 }], p1, &[]);
2092→
2093→ let final_hand = game.state.players.get(&p1).unwrap().hand.len();
2094→ let final_library = game.state.players.get(&p1).unwrap().library.len();
2095→
2096→ assert_eq!(final_hand, initial_hand + 2);
2097→ assert_eq!(final_library, initial_library - 2);
2098→ }
2099→
```
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "cd /mnt/dest-btrfs/home/jc/src/mage/mtg-rl && grep -n 'execute_effects(' mtg-engine/src/game.rs | grep -v '//'",
"description": "Find all execute_effects calls"
}
```
## Assistant
**Result** (success):
```
741: self.execute_effects(&effects, item.controller, &targets, Some(item.id));
751: self.execute_effects(&ability.effects, item.controller, &targets, Some(source));
949: pub fn execute_effects(&mut self, effects: &[Effect], controller: PlayerId, targets: &[ObjectId], source: Option) {
2091: game.execute_effects(&[Effect::DrawCards { count: 2 }], p1, &[]);
2121: game.execute_effects(&[Effect::GainLife { amount: 5 }], p1, &[]);
2146: game.execute_effects(&[Effect::lose_life_opponents(3)], p1, &[]);
2184: game.execute_effects(&[Effect::Exile], p1, &[bear_id]);
2222: game.execute_effects(&[Effect::Bounce], p1, &[bear_id]);
```
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "sed -i 's/game\\.execute_effects(\\(.*\\), &\\[\\]);/game.execute_effects(\\1, \\&[], None);/g; s/game\\.execute_effects(\\(.*\\), &\\[bear_id\\]);/game.execute_effects(\\1, \\&[bear_id], None);/g' mtg-engine/src/game.rs",
"description": "Fix test callers to pass None for source"
}
```
## Assistant
**Result** (success):
```
(empty result)
```
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "grep -n 'execute_effects(' mtg-engine/src/game.rs | grep -v '//'",
"description": "Verify all callers updated"
}
```
## Assistant
**Result** (success):
```
741: self.execute_effects(&effects, item.controller, &targets, Some(item.id));
751: self.execute_effects(&ability.effects, item.controller, &targets, Some(source));
949: pub fn execute_effects(&mut self, effects: &[Effect], controller: PlayerId, targets: &[ObjectId], source: Option) {
2091: game.execute_effects(&[Effect::DrawCards { count: 2 }], p1, &[], None);
2121: game.execute_effects(&[Effect::GainLife { amount: 5 }], p1, &[], None);
2146: game.execute_effects(&[Effect::lose_life_opponents(3)], p1, &[], None);
2184: game.execute_effects(&[Effect::Exile], p1, &[bear_id], None);
2222: game.execute_effects(&[Effect::Bounce], p1, &[bear_id], None);
```
## Assistant
Good. Now let me add a test for the self-counter behavior, then fix all the cards. Let me first check compilation and tests.
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "cargo check -p mtg-engine 2>&1 | tail -20",
"description": "Check engine compiles",
"timeout": 60000
}
```
## Assistant
**Result** (success):
```
Checking mtg-engine v0.1.0 (/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine)
Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.20s
```
## Assistant
Engine compiles. Now let me add a test for self-counters, then fix all the cards. Let me find the test section in game.rs.
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"limit": 40,
"offset": 2230
}
```
## Assistant
**Result** (success):
```
2230→ let p1 = PlayerId::new();
2231→ let p2 = PlayerId::new();
2232→
2233→ let config = GameConfig {
2234→ players: vec![
2235→ PlayerConfig { name: "Alice".to_string(), deck: make_deck(p1) },
2236→ PlayerConfig { name: "Bob".to_string(), deck: make_deck(p2) },
2237→ ],
2238→ starting_life: 20,
2239→ };
2240→
2241→ let mut game = Game::new_two_player(
2242→ config,
2243→ vec![
2244→ (p1, Box::new(AlwaysPassPlayer)),
2245→ (p2, Box::new(AlwaysPassPlayer)),
2246→ ],
2247→ );
2248→
2249→ // Add a permanent
2250→ let source_id = ObjectId::new();
2251→ let mut card = CardData::new(source_id, p1, "Sacrifice Me");
2252→ card.card_types = vec![CardType::Creature];
2253→ card.power = Some(1);
2254→ card.toughness = Some(1);
2255→ card.keywords = KeywordAbilities::empty();
2256→ game.state.battlefield.add(Permanent::new(card, p1));
2257→
2258→ // Pay tap cost
2259→ assert!(game.pay_costs(p1, source_id, &[Cost::TapSelf]));
2260→ let perm = game.state.battlefield.get(source_id).unwrap();
2261→ assert!(perm.tapped);
2262→
2263→ // Can't pay tap again (already tapped)
2264→ assert!(!game.pay_costs(p1, source_id, &[Cost::TapSelf]));
2265→
2266→ // Pay sacrifice self cost
2267→ assert!(game.pay_costs(p1, source_id, &[Cost::SacrificeSelf]));
2268→ assert!(!game.state.battlefield.contains(source_id));
2269→
```
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"limit": 30,
"offset": 2268
}
```
## Assistant
**Result** (success):
```
2268→ assert!(!game.state.battlefield.contains(source_id));
2269→
2270→ // The card should be in the graveyard
2271→ let player = game.state.players.get(&p1).unwrap();
2272→ assert!(player.graveyard.contains(source_id));
2273→ }
2274→}
2275→
```
## Assistant
Now let me add a test for self-counters at the end of the test module.
## Assistant
### Tool: Edit
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs",
"new_string": " // The card should be in the graveyard\n let player = game.state.players.get(&p1).unwrap();\n assert!(player.graveyard.contains(source_id));\n }\n\n #[test]\n fn add_counters_self_when_no_targets() {\n let p1 = PlayerId::new();\n let p2 = PlayerId::new();\n\n let config = GameConfig {\n players: vec![\n PlayerConfig { name: \"Alice\".to_string(), deck: make_deck(p1) },\n PlayerConfig { name: \"Bob\".to_string(), deck: make_deck(p2) },\n ],\n starting_life: 20,\n };\n\n let mut game = Game::new_two_player(\n config,\n vec![\n (p1, Box::new(AlwaysPassPlayer)),\n (p2, Box::new(AlwaysPassPlayer)),\n ],\n );\n\n // Add a creature to the battlefield\n let source_id = ObjectId::new();\n let mut card = CardData::new(source_id, p1, \"Blight Creature\");\n card.card_types = vec![CardType::Creature];\n card.power = Some(3);\n card.toughness = Some(7);\n card.keywords = KeywordAbilities::empty();\n game.state.battlefield.add(Permanent::new(card, p1));\n\n // Execute AddCounters with no targets but with source — should add to self\n game.execute_effects(\n &[Effect::add_counters(\"-1/-1\", 2)],\n p1,\n &[],\n Some(source_id),\n );\n\n let perm = game.state.battlefield.get(source_id).unwrap();\n assert_eq!(perm.counters.get(&CounterType::M1M1), 2);\n\n // Execute RemoveCounters with no targets but with source — should remove from self\n game.execute_effects(\n &[Effect::RemoveCounters { counter_type: \"-1/-1\".into(), count: 1 }],\n p1,\n &[],\n Some(source_id),\n );\n\n let perm = game.state.battlefield.get(source_id).unwrap();\n assert_eq!(perm.counters.get(&CounterType::M1M1), 1);\n }\n}",
"old_string": " // The card should be in the graveyard\n let player = game.state.players.get(&p1).unwrap();\n assert!(player.graveyard.contains(source_id));\n }\n}",
"replace_all": false
}
```
## Assistant
**Result** (success):
```
The file /mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs has been updated successfully.
```
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "cargo test -p mtg-engine --lib 2>&1 | tail -20",
"description": "Run engine tests",
"timeout": 120000
}
```
## Assistant
**Result** (success):
```
test watchers::tests::track_creatures_died ... ok
test watchers::tests::custom_watcher_card_scope ... ok
test watchers::tests::track_enters_battlefield ... ok
test watchers::tests::track_life_gained ... ok
test zones::tests::battlefield_add_remove ... ok
test watchers::tests::track_spells_cast ... ok
test watchers::tests::custom_watcher_game_scope ... ok
test zones::tests::exile_zones ... ok
test zones::tests::battlefield_controlled_by ... ok
test zones::tests::library_peek ... ok
test watchers::tests::custom_watcher_player_scope ... ok
test zones::tests::library_put_on_top_and_bottom ... ok
test zones::tests::stack_lifo ... ok
test zones::tests::hand_add_remove ... ok
test zones::tests::library_draw ... ok
test zones::tests::graveyard_ordering ... ok
test game::tests::game_runs_to_completion ... ok
test result: ok. 159 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
```
## Assistant
All 159 engine tests pass. Now let me fix all the cards. I'll do them in parallel using sed for efficiency.
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "\\\n# 2a: Day of Judgment\nsed -i 's/vec!\\[Effect::Custom(\"Destroy all creatures.\".into())\\]/vec![Effect::destroy_all(\"creatures\")]/' mtg-cards/src/sets/fdn.rs && \\\n# 2b: Diregraf Ghoul\nsed -i 's/vec!\\[StaticEffect::Custom(\"Enters tapped.\".into())\\]/vec![StaticEffect::EntersTapped { filter: \"self\".into() }]/' mtg-cards/src/sets/fdn.rs && \\\n# 2c: Frenzied Goblin\nsed -i 's/vec!\\[Effect::Custom(\"Target creature can'\\''t block this turn.\".into())\\]/vec![Effect::CantBlock]/' mtg-cards/src/sets/fdn.rs && \\\necho \"FDN 2a/2b/2c done\"",
"description": "Fix FDN cards for batches 2a, 2b, 2c"
}
```
## Assistant
**Result** (success):
```
FDN 2a/2b/2c done
```
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "\\\n# 2c: Brambleback Brute (ECL)\nsed -i 's/vec!\\[Effect::Custom(\"Target creature can'\\''t block this turn.\".into())\\]/vec![Effect::CantBlock]/' mtg-cards/src/sets/ecl.rs && \\\necho \"ECL 2c done\"",
"description": "Fix ECL card for batch 2c"
}
```
## Assistant
**Result** (success):
```
ECL 2c done
```
## Assistant
Now the 2d self-counter fixes for ECL:
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "\\\n# 2d: Blighted Blackthorn (2 lines)\nsed -i 's/vec!\\[Effect::Custom(\"Put two -1\\/-1 counters on Blighted Blackthorn.\".into()), Effect::draw_cards(1), Effect::lose_life(1)\\]/vec![Effect::add_counters(\"-1\\/-1\", 2), Effect::draw_cards(1), Effect::lose_life(1)]/g' mtg-cards/src/sets/ecl.rs && \\\n# 2d: Sourbread Auntie\nsed -i 's/vec!\\[Effect::Custom(\"Put two -1\\/-1 counters on Sourbread Auntie.\".into()), Effect::create_token(\"1\\/1 Goblin\", 2)\\]/vec![Effect::add_counters(\"-1\\/-1\", 2), Effect::create_token(\"1\\/1 Goblin\", 2)]/' mtg-cards/src/sets/ecl.rs && \\\n# 2d: Sting-Slinger\nsed -i 's/vec!\\[Effect::Custom(\"Put a -1\\/-1 counter on Sting-Slinger.\".into()), Effect::damage_opponents(2)\\]/vec![Effect::add_counters(\"-1\\/-1\", 1), Effect::damage_opponents(2)]/' mtg-cards/src/sets/ecl.rs && \\\n# 2d: Heirloom Auntie (remove counter)\nsed -i 's/vec!\\[Effect::scry(1), Effect::Custom(\"Remove a -1\\/-1 counter from Heirloom Auntie.\".into())\\]/vec![Effect::scry(1), Effect::RemoveCounters { counter_type: \"-1\\/-1\".into(), count: 1 }]/' mtg-cards/src/sets/ecl.rs && \\\necho \"ECL 2d main cards done\"",
"description": "Fix ECL blight creature cards for batch 2d"
}
```
## Assistant
**Result** (success):
```
ECL 2d main cards done
```
## Assistant
Now the additional RemoveCounters cards found:
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "\\\n# Encumbered Reejerey\nsed -i 's/vec!\\[Effect::Custom(\"Remove a -1\\/-1 counter from Encumbered Reejerey.\".into())\\]/vec![Effect::RemoveCounters { counter_type: \"-1\\/-1\".into(), count: 1 }]/' mtg-cards/src/sets/ecl.rs && \\\n# Reluctant Dounguard\nsed -i 's/vec!\\[Effect::Custom(\"Remove a -1\\/-1 counter from Reluctant Dounguard.\".into())\\]/vec![Effect::RemoveCounters { counter_type: \"-1\\/-1\".into(), count: 1 }]/' mtg-cards/src/sets/ecl.rs && \\\n# Unknown creature with Ward {2} (line ~2197)\nsed -i 's/vec!\\[Effect::Custom(\"Remove a -1\\/-1 counter from this creature.\".into())\\]/vec![Effect::RemoveCounters { counter_type: \"-1\\/-1\".into(), count: 1 }]/' mtg-cards/src/sets/ecl.rs && \\\necho \"ECL extra remove-counter cards done\"",
"description": "Fix ECL extra remove-counter cards"
}
```
## Assistant
**Result** (success):
```
ECL extra remove-counter cards done
```
## Assistant
Now batch 2e (loot — Icewind Elemental in FDN) and 2f (ETB draw — Mistmeadow Council in ECL):
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "\\\n# 2e: Icewind Elemental (loot = draw then discard)\nsed -i 's/vec!\\[Effect::Custom(\"When this creature enters, draw a card, then discard a card.\".into())\\]/vec![Effect::draw_cards(1), Effect::discard_cards(1)]/' mtg-cards/src/sets/fdn.rs && \\\n# 2f: Mistmeadow Council (ETB draw)\nsed -i 's/vec!\\[Effect::Custom(\"When this creature enters, draw a card.\".into())\\]/vec![Effect::draw_cards(1)]/' mtg-cards/src/sets/ecl.rs && \\\necho \"2e and 2f done\"",
"description": "Fix loot and ETB draw cards"
}
```
## Assistant
**Result** (success):
```
2e and 2f done
```
## Assistant
Now let me also fix the bonus card I found — Refute (FDN) which has counter spell + loot:
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "\\\n# Refute: counter target spell + loot\nsed -i 's/vec!\\[Effect::Custom(\"Counter target spell. Draw a card, then discard a card.\".into())\\]/vec![Effect::counter_spell(), Effect::draw_cards(1), Effect::discard_cards(1)]/' mtg-cards/src/sets/fdn.rs && \\\necho \"Refute fixed\"",
"description": "Fix Refute card"
}
```
## Assistant
**Result** (success):
```
Refute fixed
```
## Assistant
Also need to fix Refute's target — it says "Counter target spell" but has `TargetSpec::None`:
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/fdn.rs",
"limit": 12,
"offset": 6890
}
```
## Assistant
**Result** (success):
```
6890→fn refute(id: ObjectId, owner: PlayerId) -> CardData {
6891→ CardData { id, owner, name: "Refute".into(), mana_cost: ManaCost::parse("{1}{U}{U}"),
6892→ card_types: vec![CardType::Instant],
6893→ rarity: Rarity::Common,
6894→ abilities: vec![
6895→ Ability::spell(id,
6896→ vec![Effect::counter_spell(), Effect::draw_cards(1), Effect::discard_cards(1)],
6897→ TargetSpec::None),
6898→ ],
6899→ ..Default::default() }
6900→}
6901→
```
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "sed -i '/vec!\\[Effect::counter_spell(), Effect::draw_cards(1), Effect::discard_cards(1)\\]/{n;s/TargetSpec::None/TargetSpec::Spell/}' mtg-cards/src/sets/fdn.rs && echo \"Refute target fixed\"",
"description": "Fix Refute targeting to TargetSpec::Spell"
}
```
## Assistant
**Result** (success):
```
Refute target fixed
```
## Assistant
Now let me verify all changes compiled correctly:
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "cargo check -p mtg-cards 2>&1 | tail -20",
"description": "Check cards crate compiles",
"timeout": 120000
}
```
## Assistant
**Result** (success):
```
Checking mtg-engine v0.1.0 (/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine)
Checking mtg-cards v0.1.0 (/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards)
Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.35s
```
## Assistant
Now run all tests:
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "cargo test --lib 2>&1 | tail -20",
"description": "Run all library tests",
"timeout": 120000
}
```
## Assistant
**Result** (success):
```
|
note: method defined here
--> /mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs:949:12
|
949 | pub fn execute_effects(&mut self, effects: &[Effect], controller: PlayerId, targets: &[ObjectId], source: Option) {
| ^^^^^^^^^^^^^^^
help: provide the argument
|
829 - game.execute_effects(
830 - &[Effect::GainLife { amount: 5 }],
831 - test.player_a_id,
832 - &[],
833 - );
829 + game.execute_effects(&[Effect::GainLife { amount: 5 }], test.player_a_id, &[], /* Option */);
|
For more information about this error, try `rustc --explain E0061`.
error: could not compile `mtg-tests` (lib test) due to 4 previous errors
warning: build failed, waiting for other jobs to finish...
warning: `mtg-ai` (lib test) generated 1 warning (1 duplicate)
```
## Assistant
There are callers in `mtg-tests` that also need updating. Let me find and fix them.
## Assistant
### Tool: Grep
**Args:**
```json
{
"-n": true,
"output_mode": "content",
"path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-tests",
"pattern": "execute_effects\\("
}
```
## Assistant
**Result** (success):
```
mtg-tests/src/framework.rs:765: game.execute_effects(
mtg-tests/src/framework.rs:790: game.execute_effects(
mtg-tests/src/framework.rs:813: game.execute_effects(
mtg-tests/src/framework.rs:829: game.execute_effects(
```
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-tests/src/framework.rs",
"limit": 80,
"offset": 760
}
```
## Assistant
**Result** (success):
```
760→ .find(|p| p.name() == "Grizzly Bears")
761→ .unwrap()
762→ .id();
763→
764→ let game = test.game.as_mut().unwrap();
765→ game.execute_effects(
766→ &[Effect::Destroy],
767→ test.player_a_id,
768→ &[bear_id],
769→ );
770→ game.process_state_based_actions();
771→
772→ // Bear should be gone
773→ assert_eq!(game.state.battlefield.len(), 0);
774→ }
775→
776→ #[test]
777→ fn framework_bolt_kills_bear() {
778→ // Simulate Lightning Bolt killing Grizzly Bears via direct effect execution
779→ let mut test = GameTest::new();
780→ test.add_card(Zone::Battlefield, Player::B, "Grizzly Bears");
781→ test.execute();
782→
783→ let bear_id = test.game().state.battlefield
784→ .controlled_by(test.player_id(Player::B))
785→ .find(|p| p.name() == "Grizzly Bears")
786→ .unwrap()
787→ .id();
788→
789→ let game = test.game.as_mut().unwrap();
790→ game.execute_effects(
791→ &[Effect::DealDamage { amount: 3 }],
792→ test.player_a_id,
793→ &[bear_id],
794→ );
795→ game.process_state_based_actions();
796→
797→ assert!(!game.state.battlefield.contains(bear_id));
798→ }
799→
800→ #[test]
801→ fn framework_exile_and_assert() {
802→ let mut test = GameTest::new();
803→ test.add_card(Zone::Battlefield, Player::A, "Grizzly Bears");
804→ test.execute();
805→
806→ let bear_id = test.game().state.battlefield
807→ .controlled_by(test.player_id(Player::A))
808→ .find(|p| p.name() == "Grizzly Bears")
809→ .unwrap()
810→ .id();
811→
812→ let game = test.game.as_mut().unwrap();
813→ game.execute_effects(
814→ &[Effect::Exile],
815→ test.player_b_id,
816→ &[bear_id],
817→ );
818→
819→ test.assert_permanent_count(Player::A, "Grizzly Bears", 0);
820→ test.assert_exile_count("Grizzly Bears", 1);
821→ }
822→
823→ #[test]
824→ fn framework_gain_life_effect() {
825→ let mut test = GameTest::new();
826→ test.execute();
827→
828→ let game = test.game.as_mut().unwrap();
829→ game.execute_effects(
830→ &[Effect::GainLife { amount: 5 }],
831→ test.player_a_id,
832→ &[],
833→ );
834→
835→ test.assert_life(Player::A, 25);
836→ test.assert_life(Player::B, 20);
837→ }
838→
839→ #[test]
```
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "sed -i '/execute_effects(/{\n # Look ahead for the closing );\n :loop\n /);/{\n s/);/, None);/\n b done\n }\n N\n b loop\n :done\n}' mtg-tests/src/framework.rs && echo \"framework.rs updated\"",
"description": "Add None source param to framework.rs execute_effects calls"
}
```
## Assistant
**Result** (success):
```
framework.rs updated
```
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "grep -n 'execute_effects' mtg-tests/src/framework.rs",
"description": "Verify framework.rs changes"
}
```
## Assistant
**Result** (success):
```
765: game.execute_effects(
790: game.execute_effects(
813: game.execute_effects(
829: game.execute_effects(
```
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "grep -A5 'execute_effects' mtg-tests/src/framework.rs | head -30",
"description": "Check if None was added correctly"
}
```
## Assistant
**Result** (success):
```
game.execute_effects(
&[Effect::Destroy],
test.player_a_id,
&[bear_id],
, None);
game.process_state_based_actions();
--
game.execute_effects(
&[Effect::DealDamage { amount: 3 }],
test.player_a_id,
&[bear_id],
, None);
game.process_state_based_actions();
--
game.execute_effects(
&[Effect::Exile],
test.player_b_id,
&[bear_id],
, None);
--
game.execute_effects(
&[Effect::GainLife { amount: 5 }],
test.player_a_id,
&[],
, None);
```
## Assistant
## Assistant
The sed left bad formatting. Let me fix these properly.
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-tests/src/framework.rs",
"limit": 6,
"offset": 764
}
```
## Assistant
**Result** (success):
```
764→ let game = test.game.as_mut().unwrap();
765→ game.execute_effects(
766→ &[Effect::Destroy],
767→ test.player_a_id,
768→ &[bear_id],
769→ , None);
```
## Assistant
### Tool: Edit
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-tests/src/framework.rs",
"new_string": " None,\n );",
"old_string": " , None);",
"replace_all": true
}
```
## Assistant
**Result** (success):
```
The file /mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-tests/src/framework.rs has been updated. All occurrences of ' , None);' were successfully replaced with ' None,
);'.
```
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "cargo test --lib 2>&1 | tail -10",
"description": "Run all library tests",
"timeout": 120000
}
```
## Assistant
**Result** (success):
```
test framework::tests::framework_multiple_permanents ... ok
test framework::tests::framework_gain_life_effect ... ok
test framework::tests::framework_setup_hand ... ok
test concurrency::tests::parallel_gymnasium_envs ... ok
test concurrency::tests::throughput_baseline ... ok
test concurrency::tests::parallel_games_produce_varied_results ... ok
test concurrency::tests::parallel_games_complete_without_panic ... ok
test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.29s
```
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "cargo test --lib 2>&1 | grep -E 'test result|passed|failed'",
"description": "Get total test results",
"timeout": 120000
}
```
## Assistant
**Result** (success):
```
test result: ok. 52 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
test result: ok. 159 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
```
## Assistant
All 246 tests pass (up from 245 — the new self-counter test). Now let me verify each card change is correct by spot-checking.
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "grep -n 'Day of Judgment\\|Diregraf Ghoul\\|Frenzied Goblin\\|Icewind Elemental\\|Refute' mtg-cards/src/sets/fdn.rs | head -20",
"description": "Find the fixed FDN card lines"
}
```
## Assistant
**Result** (success):
```
24: registry.register("Diregraf Ghoul", diregraf_ghoul, "FDN");
122: registry.register("Frenzied Goblin", frenzied_goblin, "FDN");
174: registry.register("Day of Judgment", day_of_judgment, "FDN");
424: registry.register("Icewind Elemental", icewind_elemental, "FDN");
512: registry.register("Refute", refute, "FDN");
637: // Diregraf Ghoul enters the battlefield tapped.
638: CardData { id, owner, name: "Diregraf Ghoul".into(), mana_cost: ManaCost::parse("{B}"),
643: "Diregraf Ghoul enters the battlefield tapped.",
1774: CardData { id, owner, name: "Frenzied Goblin".into(), mana_cost: ManaCost::parse("{R}"),
1779: "Whenever Frenzied Goblin attacks, you may pay {R}. If you do, target creature can't block this turn.",
2413: CardData { id, owner, name: "Day of Judgment".into(), mana_cost: ManaCost::parse("{2}{W}{W}"),
6332: CardData { id, owner, name: "Icewind Elemental".into(), mana_cost: ManaCost::parse("{4}{U}"),
6891: CardData { id, owner, name: "Refute".into(), mana_cost: ManaCost::parse("{1}{U}{U}"),
```
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "# Verify the specific effect lines\ngrep -n 'destroy_all\\|EntersTapped.*self\\|CantBlock\\|counter_spell.*draw_cards.*discard_cards\\|draw_cards(1), Effect::discard_cards(1)' mtg-cards/src/sets/fdn.rs",
"description": "Verify FDN fixes applied correctly"
}
```
## Assistant
**Result** (success):
```
644: vec![StaticEffect::EntersTapped { filter: "self".into() }]),
1482: vec![StaticEffect::CantBlock { filter: "self".into() }]),
1780: vec![Effect::CantBlock],
2417: vec![Effect::destroy_all("creatures")],
2482: StaticEffect::CantBlock { filter: "enchanted creature".into() }]),
2860: vec![StaticEffect::EntersTapped { filter: "self".into() }]),
2943: vec![StaticEffect::EntersTapped { filter: "self".into() }]),
2977: vec![StaticEffect::EntersTapped { filter: "self".into() }]),
2995: vec![StaticEffect::EntersTapped { filter: "self".into() }]),
6342: vec![Effect::draw_cards(1), Effect::discard_cards(1)],
6896: vec![Effect::counter_spell(), Effect::draw_cards(1), Effect::discard_cards(1)],
```
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "# Verify ECL fixes\ngrep -n 'add_counters.*-1/-1\\|RemoveCounters.*-1/-1\\|CantBlock' mtg-cards/src/sets/ecl.rs",
"description": "Verify ECL fixes applied correctly"
}
```
## Assistant
**Result** (success):
```
324: vec![Effect::add_counters("-1/-1", 1)],
354: vec![Effect::add_counters("-1/-1", 2), Effect::draw_cards(1), Effect::lose_life(1)],
358: vec![Effect::add_counters("-1/-1", 2), Effect::draw_cards(1), Effect::lose_life(1)],
426: vec![Effect::add_counters("-1/-1", 2)],
431: vec![Effect::CantBlock],
445: vec![Effect::add_counters("-1/-1", 2)],
710: vec![Effect::add_counters("-1/-1", 3)],
715: vec![Effect::RemoveCounters { counter_type: "-1/-1".into(), count: 1 }],
897: vec![Effect::add_counters("-1/-1", 2)],
901: vec![Cost::RemoveCounters("-1/-1".into(), 2)],
988: vec![Effect::add_counters("-1/-1", 2)],
992: vec![Effect::scry(1), Effect::RemoveCounters { counter_type: "-1/-1".into(), count: 1 }],
1142: vec![Effect::add_counters("-1/-1", 1)],
1146: vec![Cost::RemoveCounters("-1/-1".into(), 1)],
1179: vec![Effect::add_counters("-1/-1", 1)],
1252: vec![Effect::add_counters("-1/-1", 2)],
1256: vec![Effect::RemoveCounters { counter_type: "-1/-1".into(), count: 1 }],
1438: vec![Effect::add_counters("-1/-1", 2), Effect::create_token("1/1 Goblin", 2)],
1467: vec![Effect::add_counters("-1/-1", 1), Effect::damage_opponents(2)],
1807: abilities: vec![Ability::spell(id, vec![Effect::add_counters("-1/-1", 4)], TargetSpec::Creature)],
2192: vec![Effect::add_counters("-1/-1", 5)],
2197: vec![Effect::RemoveCounters { counter_type: "-1/-1".into(), count: 1 }],
2543: vec![Effect::add_counters("-1/-1", 3)],
```
## Assistant
All fixes verified. Also let me check there's no remaining `Custom("draw a card")` in ECL:
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "grep -n 'Custom.*draw a card' mtg-cards/src/sets/ecl.rs",
"description": "Check for remaining draw-card Custom stubs in ECL"
}
```
## Assistant
**Result** (success):
```
1646: vec![Effect::Custom("Pay 1 life to draw a card.".into())],
```
## Assistant
That one is a conditional cost-based effect (pay 1 life to draw) — too complex for batch 2. Good.
Now let me update the docs. Let me first check what card is at ECL line 2187 (the creature with Ward {2} and remove counters):
## Assistant
### Tool: Read
**Args:**
```json
{
"file_path": "/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/ecl.rs",
"limit": 5,
"offset": 2180
}
```
## Assistant
**Result** (success):
```
2180→ // Enters with five -1/-1 counters. Whenever another creature you control enters while this has a -1/-1 counter, remove one.
2181→ CardData { id, owner, name: "Bristlebane Battler".into(), mana_cost: ManaCost::parse("{1}{G}"),
2182→ card_types: vec![CardType::Creature],
2183→ subtypes: vec![SubType::Custom("Kithkin".into()), SubType::Soldier],
2184→ power: Some(6), toughness: Some(6),
```
## Assistant
Bristlebane Battler. Now let me update all the documentation files. Let me read the remediation docs to understand the format.
## Assistant
### Tool: Task
**Args:**
```json
{
"description": "Update remediation docs",
"mode": "bypassPermissions",
"prompt": "Update the remediation docs and work queue for the mtg-rl project. Here's what was done in Batch 2:\n\n**Engine change**: Modified `execute_effects` in `mtg-engine/src/game.rs` to accept an optional `source: Option` parameter. When `AddCounters` or `RemoveCounters` effects have no targets, they now fall back to the source permanent (for self-targeting counter effects). Added test `add_counters_self_when_no_targets`.\n\n**Cards fixed:**\n\nFDN:\n- Day of Judgment: `Custom(\"Destroy all creatures.\")` → `Effect::destroy_all(\"creatures\")`\n- Diregraf Ghoul: `StaticEffect::Custom(\"Enters tapped.\")` → `StaticEffect::EntersTapped { filter: \"self\".into() }`\n- Frenzied Goblin: `Custom(\"Target creature can't block this turn.\")` → `Effect::CantBlock`\n- Icewind Elemental: `Custom(\"When this creature enters, draw a card, then discard a card.\")` → `Effect::draw_cards(1), Effect::discard_cards(1)`\n- Refute: `Custom(\"Counter target spell. Draw a card, then discard a card.\")` → `Effect::counter_spell(), Effect::draw_cards(1), Effect::discard_cards(1)` + fixed TargetSpec to Spell\n\nECL:\n- Brambleback Brute: `Custom(\"Target creature can't block this turn.\")` → `Effect::CantBlock`\n- Blighted Blackthorn (x2): `Custom(\"Put two -1/-1 counters on Blighted Blackthorn.\")` → `Effect::add_counters(\"-1/-1\", 2)`\n- Sourbread Auntie: `Custom(\"Put two -1/-1 counters on Sourbread Auntie.\")` → `Effect::add_counters(\"-1/-1\", 2)`\n- Sting-Slinger: `Custom(\"Put a -1/-1 counter on Sting-Slinger.\")` → `Effect::add_counters(\"-1/-1\", 1)`\n- Heirloom Auntie: `Custom(\"Remove a -1/-1 counter from Heirloom Auntie.\")` → `Effect::RemoveCounters { counter_type: \"-1/-1\", count: 1 }`\n- Encumbered Reejerey: `Custom(\"Remove a -1/-1 counter from Encumbered Reejerey.\")` → `Effect::RemoveCounters { counter_type: \"-1/-1\", count: 1 }`\n- Reluctant Dounguard: `Custom(\"Remove a -1/-1 counter from Reluctant Dounguard.\")` → `Effect::RemoveCounters { counter_type: \"-1/-1\", count: 1 }`\n- Bristlebane Battler: `Custom(\"Remove a -1/-1 counter from this creature.\")` → `Effect::RemoveCounters { counter_type: \"-1/-1\", count: 1 }`\n- Mistmeadow Council: `Custom(\"When this creature enters, draw a card.\")` → `Effect::draw_cards(1)`\n\n**Cards NOT fixed (noted for future batches):**\n- Warren Torchmaster: compound Custom with self-counter + target haste (needs modal/conditional support)\n- Dream Seizer: compound Custom with self-counter + opponent discard (batch 3 dependency)\n- ECL line 1843: \"Put two -1/-1 counters on each creature.\" (needs AddCountersAll variant)\n- ECL line 464: Cost::Custom for -1/-1 counter (not Effect, so different fix needed)\n\nPlease:\n1. Read `docs/work-queue.md` and check off batch 2 sub-items with [x] and add today's date (2026-02-13) to the header\n2. Read `docs/fdn-remediation.md` and mark Day of Judgment, Diregraf Ghoul, Frenzied Goblin, Icewind Elemental, and Refute as fixed\n3. Read `docs/ecl-remediation.md` and mark all the ECL cards above as fixed\n4. Read `ROADMAP.md` and add the AddCounters/RemoveCounters source fallback as completed\n5. Add the newly discovered cards (Warren Torchmaster compound effect, Dream Seizer compound effect, the AddCountersAll need, Mistmeadow Council, Brambleback Brute CantBlock fix, Refute) to appropriate places in the work queue if they're not already listed\n6. Note in the work queue that \"Skoa Veteran\" from batch 2c was actually \"Brambleback Brute\" in ecl.rs\n\nWrite the changes, don't just describe them.",
"subagent_type": "general-purpose"
}
```
## Assistant
**Result** (success):
```
Good -- Bristlebane Battler is still `[ ]` (unchecked) because Ward is still broken, but the description properly notes the RemoveCounters fix. That's correct.
Here is a summary of all the changes made:
---
**Files modified:**
1. **`/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/docs/work-queue.md`**:
- Batch 2 header changed from unmarked to `[DONE 2026-02-13]`
- Engine description updated to reflect the `source: Option` parameter change
- All sub-items (2a through 2f) checked off with `[x]` and card names identified
- Batch 2c corrected: "Skoa Veteran" was actually "Brambleback Brute" in ecl.rs (note added)
- Batch 2d expanded with 3 additional ECL RemoveCounters cards (Encumbered Reejerey, Reluctant Dounguard, Bristlebane Battler)
- Batch 2e renamed from "Jace's Phantasm area card" to "Icewind Elemental, Refute"
- Batch 2f renamed from "ECL stub card" to "Mistmeadow Council"
- "Cards NOT fixed in Batch 2 (deferred)" section added listing Warren Torchmaster, Dream Seizer, AddCountersAll need, Cost::Custom issue
- Dream Seizer entry in Batch 3 updated to note self-counter part now works
- New **Batch 9: AddCountersAll** added for Darkness Descends mass counter placement
- New **Batch 10: Compound self-counter + target effects** added for Warren Torchmaster and Dream Seizer
- Former Batches 9-10+ renumbered to 11-12+
- Cost system items (Cost::Custom, Cost::RemoveCounters, Cost::ExileFromGraveyard) added to Batch 12+ list
2. **`/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/docs/fdn-remediation.md`**:
- Day of Judgment: marked `[x]` FIXED in Partial section, added to Complete section
- Diregraf Ghoul: marked `[x]` FIXED in Partial section, added to Complete section
- Frenzied Goblin: marked `[x]` FIXED in Partial section, added to Complete section
- Icewind Elemental: added to Complete section as `[x]` FIXED
- Refute: added to Complete section as `[x]` FIXED
- Phase 2 item 4 (Diregraf Ghoul) struck through as DONE
3. **`/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/docs/ecl-remediation.md`**:
- Blighted Blackthorn: marked `[x]` FIXED (self-counter now works)
- Brambleback Brute: marked `[x]` FIXED (CantBlock now typed)
- Sourbread Auntie: marked `[x]` FIXED (self-counter now works)
- Sting-Slinger: marked `[x]` FIXED (self-counter now works)
- Heirloom Auntie: marked `[x]` FIXED (RemoveCounters now typed)
- Encumbered Reejerey: marked `[x]` FIXED (RemoveCounters now typed)
- Reluctant Dounguard: marked `[x]` FIXED (RemoveCounters now typed)
- Bristlebane Battler: description updated to note RemoveCounters part is FIXED, Ward still broken (remains `[ ]`)
- Mistmeadow Council: marked `[x]` FIXED (draw_cards now typed)
- Priority Fix section 3 (RemoveCounters updates) struck through as MOSTLY DONE, remaining cards noted
- Priority Fix section 7 (easy Custom-to-typed) struck through as DONE with all 7 sub-items checked
4. **`/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/ROADMAP.md`**:
- Added "Batch 2 engine change (2026-02-13)" paragraph documenting the `source: Option` parameter addition to `execute_effects`
- Phase 1 item 2 expanded with struck-through DONE entries for all Batch 2 card fixes (Diregraf Ghoul, Sourbread Auntie/Sting-Slinger/Blighted Blackthorn, Day of Judgment, Frenzied Goblin/Brambleback Brute, Icewind Elemental/Refute, ECL RemoveCounters cards, Mistmeadow Council)
agentId: aed45f1 (for resuming to continue this agent's work if needed)
total_tokens: 95634
tool_uses: 37
duration_ms: 297039
```
## Assistant
All docs updated. Let me verify everything is clean with a final check.
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "cargo check -p mtg-cards && cargo test --lib 2>&1 | grep -E 'test result|error'",
"description": "Final verification",
"timeout": 120000
}
```
## Assistant
**Result** (success):
```
test result: ok. 52 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
test result: ok. 159 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.31s
Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
```
## Assistant
All 246 tests pass, zero errors. Let me do a quick summary of remaining Custom stubs eliminated:
## Assistant
### Tool: Bash
**Args:**
```json
{
"command": "echo \"=== Remaining Custom effects in FDN ===\" && grep -c 'Effect::Custom' mtg-cards/src/sets/fdn.rs && echo \"=== Remaining Custom effects in ECL ===\" && grep -c 'Effect::Custom' mtg-cards/src/sets/ecl.rs && echo \"=== Remaining Custom static effects in FDN ===\" && grep -c 'StaticEffect::Custom' mtg-cards/src/sets/fdn.rs && echo \"=== Remaining Custom static effects in ECL ===\" && grep -c 'StaticEffect::Custom' mtg-cards/src/sets/ecl.rs",
"description": "Count remaining Custom stubs"
}
```
## Assistant
**Result** (success):
```
=== Remaining Custom effects in FDN ===
315
=== Remaining Custom effects in ECL ===
178
=== Remaining Custom static effects in FDN ===
57
=== Remaining Custom static effects in ECL ===
43
```
## Assistant
Batch 2 is complete. Here's the summary:
## Batch 2: Easy swaps — DONE
### Engine change
- Added `source: Option` parameter to `execute_effects()` in game.rs
- `AddCounters` and `RemoveCounters` now fall back to the source permanent when no targets are provided (self-targeting counter effects)
- Added test `add_counters_self_when_no_targets`
### Cards fixed (15 effects across 14 cards)
**FDN (5 cards):**
- Day of Judgment: `Custom("Destroy all creatures.")` → `destroy_all("creatures")`
- Diregraf Ghoul: `StaticEffect::Custom("Enters tapped.")` → `EntersTapped { filter: "self" }`
- Frenzied Goblin: `Custom("Target creature can't block...")` → `CantBlock`
- Icewind Elemental: `Custom("draw a card, then discard a card")` → `draw_cards(1), discard_cards(1)`
- Refute: `Custom("Counter target spell. Draw a card...")` → `counter_spell(), draw_cards(1), discard_cards(1)` + fixed targeting to `TargetSpec::Spell`
**ECL (9 cards):**
- Brambleback Brute: `Custom("can't block")` → `CantBlock`
- Blighted Blackthorn (x2): self -1/-1 counters → `add_counters("-1/-1", 2)`
- Sourbread Auntie: self -1/-1 counters → `add_counters("-1/-1", 2)`
- Sting-Slinger: self -1/-1 counter → `add_counters("-1/-1", 1)`
- Heirloom Auntie, Encumbered Reejerey, Reluctant Dounguard, Bristlebane Battler: remove -1/-1 counter → `RemoveCounters`
- Mistmeadow Council: ETB draw → `draw_cards(1)`
### Results
- 246 tests pass (up from 245 — new self-counter test)
- Updated work-queue.md, fdn-remediation.md, ecl-remediation.md, ROADMAP.md