Yu-Gi-Oh Duelist Pack Jaden Yuki 3 - Armor Breaker Rare DP06-EN009
Once per turn, during your Main Phase, if you control this monster on the field, you can equip it to a face-up Warrior-Type monster on your side of the field as an Equip Spell Card, or unequip it, and Special Summon as a monster in face-up Attack Position. When the equipped monster inflicts Battle Damage to your opponent's Life Points, you can destroy 1 card on the field. (A monster can only be equipped with 1 Union Monster at a time. If the equipped monster is destroyed as a result of battle, destroy this card instead.)