Idiot lifts the moment its march turns impossible

The all-carried check ran only on the victim's own step, so a curse
whose last floor treasure was hauled off mid-turn kept its grip until
the idiot happened to move. The lift check now also runs at the pickup
that empties the floor, and at attach for a victim already standing on
their chest.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015RCWSTnb1KYTPyL4GmhGnF

packages/engine/src/game.ts

@@ -2575,6 +2575,8 @@ const CARD_EFFECTS: Record<string, AttackEffect | NeutralEffect | CounterEffect>
       const carried = ctx.state.treasures.find((t) => t.id === ctx.defender.carriedTreasureId);
       if (carried?.owner === ctx.defender.id) return;
       attachSustained(ctx.state, ctx.events, "idiot", ctx.attacker.id, ctx.defender.id, PERMANENT_TURNS);
+      // Already standing on their own treasure: the march is over as it begins.
+      liftIdiotIfSatisfied(ctx.state, ctx.events, ctx.defender);
     },
   },
   "big-man": {
@@ -4400,19 +4402,7 @@ function doMove(prev: GameState, direction: Side, over = false): CommandResult {
     state.turn.actionsEnded = true;
     springSlimeTrap(state, events, p);
   }
-  // IDIOT lifts when the victim reaches their own treasure.
-  if (sustainedOn(state, p.id, "idiot").length > 0) {
-    const onOwn = state.treasures.some(
-      (t) => t.owner === p.id && t.position && cellKey(t.position) === cellKey(p.position),
-    );
-    const allCarried = !state.treasures.some((t) => t.owner === p.id && t.position);
-    if (onOwn || allCarried) {
-      for (const fx of sustainedOn(state, p.id, "idiot")) {
-        events.push({ type: "spellExpired", effectId: fx.id, cardId: "idiot", target: p.id });
-      }
-      state.sustained = state.sustained.filter((fx) => !(fx.cardId === "idiot" && fx.targetId === p.id));
-    }
-  }
+  liftIdiotIfSatisfied(state, events, p);
 
   // Armed ambushes may spring on this step.
   checkAmbushes(state, events, p, { movedFrom: from });
@@ -4561,6 +4551,22 @@ function castingBlocked(
  * treasure on their own home, or drop their own treasure underfoot for an
  * instant cure.
  */
+/** IDIOT lifts when the march is done — the victim stands on their own
+ * treasure — or turns unsatisfiable: every one of their treasures is in
+ * someone's arms, leaving nothing to stand on. */
+function liftIdiotIfSatisfied(state: GameState, events: GameEvent[], p: PlayerState): void {
+  if (sustainedOn(state, p.id, "idiot").length === 0) return;
+  const onOwn = state.treasures.some(
+    (t) => t.owner === p.id && t.position && cellKey(t.position) === cellKey(p.position),
+  );
+  const allCarried = !state.treasures.some((t) => t.owner === p.id && t.position);
+  if (!onOwn && !allCarried) return;
+  for (const fx of sustainedOn(state, p.id, "idiot")) {
+    events.push({ type: "spellExpired", effectId: fx.id, cardId: "idiot", target: p.id });
+  }
+  state.sustained = state.sustained.filter((fx) => !(fx.cardId === "idiot" && fx.targetId === p.id));
+}
+
 function idiotBlocked(state: GameState, playerId: PlayerId): string | null {
   if (sustainedOn(state, playerId, "idiot").length > 0) {
     return "What am I doing here...? (you can do nothing but head for your treasure)";
@@ -6400,6 +6406,10 @@ function doPickUpTreasure(prev: GameState, treasureId?: string): CommandResult {
   const events: GameEvent[] = [
     { type: "treasurePickedUp", player: p.id, treasureId: t.id, owner: t.owner, at: p.position },
   ];
+  // This grab may have lifted the owner's IDIOT: with every one of their
+  // treasures now carried, there is nothing left to march to.
+  const cursedOwner = state.players.find((q) => q.id === t.owner);
+  if (cursedOwner) liftIdiotIfSatisfied(state, events, cursedOwner);
   // WARD: "you may play at that time (out of turn) this card on him" —
   // literally: the grab hangs while the owner decides.
   const owner = state.players.find((q) => q.id === t.owner);

packages/engine/test/expansion-combat.test.ts

@@ -165,6 +165,34 @@ describe("expansion combat cards", () => {
     }
   });
 
+  it("idiot lifts the moment the victim's last floor treasure is carried off", () => {
+    let { state } = createGame({ playerIds: ["alice", "bob", "carol"], seed: 42, sets: ["basic"] });
+    while (state.turn.round < 2) {
+      state = must(state, activePlayer(state).id, { type: "endTurn", draw: 0 });
+    }
+    const { attacker, defender } = faceOff(state);
+    const third = state.players.find((p) => p.id !== attacker && p.id !== defender)!;
+    const id = giveCard(state, attacker, "idiot");
+    state = castAt(state, attacker, defender, id);
+    expect(sustainedOn(state, defender, "idiot").length).toBe(1);
+
+    // A third wizard hauls off one of the victim's chests: one destination
+    // remains, so the march goes on.
+    const [first, second] = state.treasures.filter((t) => t.owner === defender);
+    const hauler = state.players.find((p) => p.id === third.id)!;
+    first!.carriedBy = hauler.id;
+    first!.position = null;
+    hauler.carriedTreasureId = first!.id;
+    expect(sustainedOn(state, defender, "idiot").length).toBe(1);
+
+    // The caster takes the last one off the floor — nothing left to march
+    // to, and the curse lifts on the spot.
+    const att = state.players.find((p) => p.id === attacker)!;
+    att.position = { ...second!.position! };
+    state = must(state, attacker, { type: "pickUpTreasure", treasureId: second!.id });
+    expect(sustainedOn(state, defender, "idiot").length).toBe(0);
+  });
+
   it("idiot forbids item handling and punches but allows counteractions", () => {
     let { state } = createGame({
       playerIds: ["alice", "bob"], seed: 42, sets: ["basic", "expansion1"],