Powerstone blesses a number already played this turn

On the table the stone and the number land together; digitally the
display can come a beat late and the +1 silently vanished. Displaying
POWERSTONE now grants the stride retroactively when a number was
already played for movement this turn, with a chronicle line so the
gain is visible. Pure widening — no rev needed.

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

packages/engine/src/game.ts

@@ -715,6 +715,7 @@ export type GameEvent =
   | { type: "treasureTorn"; attacker: PlayerId; defender: PlayerId; treasureId: string; toFloor: boolean }
   | { type: "tearResisted"; attacker: PlayerId; defender: PlayerId }
   | { type: "treasureTearAttempted"; attacker: PlayerId; defender: PlayerId }
+  | { type: "powerstoneBoost"; player: PlayerId; newAllowance: number }
   | { type: "treasureDropped"; player: PlayerId; treasureId: string; at: Cell; onHomeOf: PlayerId | null }
   | { type: "playerEliminated"; player: PlayerId; reason: "killed" | "treasuresLost" }
   | { type: "cardsDiscarded"; player: PlayerId; cards: CardInstance[] }
@@ -1652,7 +1653,15 @@ const CARD_EFFECTS: Record<string, AttackEffect | NeutralEffect | CounterEffect>
   },
   // --- Magic stones ---------------------------------------------------------
   bloodstone: stoneEffect(),
-  powerstone: stoneEffect(),
+  // "Add 1 to any NUMBER card played." On the table the stone and the
+  // number land together; digitally the display may come a beat late, so
+  // it blesses a number already played for movement this turn.
+  powerstone: stoneEffect((state, events, caster) => {
+    if (activePlayer(state).id === caster.id && state.turn.numberPlayedForMovement) {
+      state.turn.movementAllowance += 1;
+      events.push({ type: "powerstoneBoost", player: caster.id, newAllowance: state.turn.movementAllowance });
+    }
+  }),
   shadowstone: stoneEffect(),
   soulstone: stoneEffect(),
   speedstone: stoneEffect((state, _events, caster) => {

packages/web/src/net.svelte.ts

@@ -67,6 +67,7 @@ export function humanize(e: GameEvent): string | null {
       : `${e.attacker} TEARS the treasure from ${e.defender}'s arms!`;
     case "tearResisted": return `${e.defender} clutches the treasure with white knuckles — ${e.attacker} comes away empty!`;
     case "treasureTearAttempted": return `${e.attacker} grabs for the treasure in ${e.defender}'s arms!`;
+    case "powerstoneBoost": return `The powerstone hums over the number already played — ${e.player} gains a stride (${e.newAllowance} total).`;
     case "trapSprung": return e.cardId === "gift-from-below"
       ? `${e.player} draws GIFT FROM BELOW — it bites for 3, then deals again!`
       : `${e.player} walked into an old TRAP! Lose a turn.`;