diff --git a/src/data/ability.ts b/src/data/ability.ts
index eea24c791b0..790bff2290d 100644
--- a/src/data/ability.ts
+++ b/src/data/ability.ts
@@ -3499,8 +3499,18 @@ export class BonusCritAbAttr extends AbAttr {
   constructor() {
     super(false);
   }
-  override apply(pokemon: Pokemon, passive: boolean, simulated: boolean, cancelled: Utils.BooleanHolder, args: any[]): void {
-    (args[0] as Utils.BooleanHolder).value = true;
+
+  /**
+   * Apply the bonus crit ability by increasing the value in the provided number holder by 1
+   * 
+   * @param pokemon The pokemon with the BonusCrit ability (unused)
+   * @param passive Unused
+   * @param simulated Unused
+   * @param cancelled Unused
+   * @param args Args[0] is a number holder containing the crit stage.
+   */
+  override apply(pokemon: Pokemon, passive: boolean, simulated: boolean, cancelled: Utils.BooleanHolder, args: [Utils.NumberHolder, ...any]): void {
+    (args[0] as Utils.NumberHolder).value += 1;
   }
 }
 
diff --git a/src/field/pokemon.ts b/src/field/pokemon.ts
index f89319a6e30..f3e758e4efd 100644
--- a/src/field/pokemon.ts
+++ b/src/field/pokemon.ts
@@ -1340,8 +1340,9 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
   }
 
   /**
-   * Retrieves the critical-hit stage considering the move used and the Pokemon
-   * who used it.
+   * Calculate the critical-hit stage of a move used against this pokemon by
+   * the given source
+   * 
    * @param source the {@linkcode Pokemon} who using the move
    * @param move the {@linkcode Move} being used
    * @returns the final critical-hit stage value
@@ -1360,14 +1361,7 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
       source.isPlayer(),
       critStage,
     );
-    const bonusCrit = new Utils.BooleanHolder(false);
-    //@ts-ignore
-    if (applyAbAttrs(BonusCritAbAttr, source, null, false, bonusCrit)) {
-      // TODO: resolve ts-ignore. This is a promise. Checking a promise is bogus.
-      if (bonusCrit.value) {
-        critStage.value += 1;
-      }
-    }
+    applyAbAttrs(BonusCritAbAttr, source, null, false, critStage)
     const critBoostTag = source.getTag(CritBoostTag);
     if (critBoostTag) {
       if (critBoostTag instanceof DragonCheerTag) {
diff --git a/test/abilities/super_luck.test.ts b/test/abilities/super_luck.test.ts
new file mode 100644
index 00000000000..bc9524de801
--- /dev/null
+++ b/test/abilities/super_luck.test.ts
@@ -0,0 +1,43 @@
+import { Abilities } from "#enums/abilities";
+import { Moves } from "#enums/moves";
+import { Species } from "#enums/species";
+import GameManager from "#test/testUtils/gameManager";
+import Phaser from "phaser";
+import { afterEach, beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
+
+describe("Abilities - Super Luck", () => {
+  let phaserGame: Phaser.Game;
+  let game: GameManager;
+
+  beforeAll(() => {
+    phaserGame = new Phaser.Game({
+      type: Phaser.HEADLESS,
+    });
+  });
+
+  afterEach(() => {
+    game.phaseInterceptor.restoreOg();
+  });
+
+  beforeEach(() => {
+    game = new GameManager(phaserGame);
+    game.override
+      .moveset([Moves.TACKLE])
+      .ability(Abilities.SUPER_LUCK)
+      .battleType("single")
+      .disableCrits()
+      .enemySpecies(Species.MAGIKARP)
+      .enemyAbility(Abilities.BALL_FETCH)
+      .enemyMoveset(Moves.SPLASH);
+  });
+
+  it("should increase the crit stage of a user by 1", async () => {
+    await game.classicMode.startBattle([Species.MAGIKARP]);
+    const enemy = game.scene.getEnemyPokemon()!;
+    const fn = vi.spyOn(enemy, "getCritStage");
+    game.move.select(Moves.TACKLE);
+    await game.phaseInterceptor.to("BerryPhase");
+    expect(fn).toHaveReturnedWith(1);
+    fn.mockRestore();
+  });
+});