diff --git a/src/battle-scene.ts b/src/battle-scene.ts
index d5cb5dcae42..81c65d85e06 100644
--- a/src/battle-scene.ts
+++ b/src/battle-scene.ts
@@ -1635,6 +1635,9 @@ export default class BattleScene extends SceneBase {
       case SpeciesId.TATSUGIRI:
       case SpeciesId.PALDEA_TAUROS:
         return randSeedInt(species.forms.length);
+      case SpeciesId.MAUSHOLD:
+      case SpeciesId.DUDUNSPARCE:
+        return !randSeedInt(4) ? 1 : 0;
       case SpeciesId.PIKACHU:
         if (this.currentBattle?.battleType === BattleType.TRAINER && this.currentBattle?.waveIndex < 30) {
           return 0; // Ban Cosplay and Partner Pika from Trainers before wave 30