diff --git a/src/test/moves/freeze_dry.test.ts b/src/test/moves/freeze_dry.test.ts
index 9206a103a35..f207e297191 100644
--- a/src/test/moves/freeze_dry.test.ts
+++ b/src/test/moves/freeze_dry.test.ts
@@ -117,11 +117,12 @@ describe("Moves - Freeze-Dry", () => {
   });
 
   it("should deal 2x damage to steel type terastallized into water", async () => {
-    game.override.enemySpecies(Species.SKARMORY)
-      .enemyHeldItems([{ name: "TERA_SHARD", type: Type.WATER }]);
+    game.override.enemySpecies(Species.SKARMORY);
     await game.classicMode.startBattle();
 
     const enemy = game.scene.getEnemyPokemon()!;
+    enemy.teraType = Type.WATER;
+    enemy.isTerastallized = true;
     vi.spyOn(enemy, "getMoveEffectiveness");
 
     game.move.select(Moves.FREEZE_DRY);
@@ -132,11 +133,12 @@ describe("Moves - Freeze-Dry", () => {
   });
 
   it("should deal 0.5x damage to water type terastallized into fire", async () => {
-    game.override.enemySpecies(Species.PELIPPER)
-      .enemyHeldItems([{ name: "TERA_SHARD", type: Type.FIRE }]);
+    game.override.enemySpecies(Species.PELIPPER);
     await game.classicMode.startBattle();
 
     const enemy = game.scene.getEnemyPokemon()!;
+    enemy.teraType = Type.FIRE;
+    enemy.isTerastallized = true;
     vi.spyOn(enemy, "getMoveEffectiveness");
 
     game.move.select(Moves.FREEZE_DRY);
diff --git a/src/test/moves/tar_shot.test.ts b/src/test/moves/tar_shot.test.ts
index 5fb70abc19c..66f540e4f9f 100644
--- a/src/test/moves/tar_shot.test.ts
+++ b/src/test/moves/tar_shot.test.ts
@@ -83,10 +83,12 @@ describe("Moves - Tar Shot", () => {
   });
 
   it("does not double the effectiveness of Fire-type moves against a Pokémon that is Terastallized", async () => {
-    game.override.enemyHeldItems([{ name: "TERA_SHARD", type: Type.GRASS }]).enemySpecies(Species.SPRIGATITO);
+    game.override.enemySpecies(Species.SPRIGATITO);
     await game.classicMode.startBattle([ Species.PIKACHU ]);
 
     const enemy = game.scene.getEnemyPokemon()!;
+    enemy.teraType = Type.GRASS;
+    enemy.isTerastallized = true;
 
     vi.spyOn(enemy, "getMoveEffectiveness");
 
@@ -119,7 +121,8 @@ describe("Moves - Tar Shot", () => {
 
     await game.toNextTurn();
 
-    game.override.enemyHeldItems([{ name: "TERA_SHARD", type: Type.GRASS }]);
+    enemy.teraType = Type.GRASS;
+    enemy.isTerastallized = true;
 
     game.move.select(Moves.FIRE_PUNCH);
     await game.setTurnOrder([ BattlerIndex.PLAYER, BattlerIndex.ENEMY ]);