Armory Arm (Platinum Secret Rare) [RA03-EN213] Platinum Secret Rare

Defense: 1200 1 Tuner 1 non-Tuner monsters Once per turn, you can either: Target 1 monster on the field; equip this card to that target, OR: Unequip this card and Special Summon it in Attack Position. While equipped by this effect, that target gains 1000 ATK. If that target destroys a monster by battle and sends it to the GY: Inflict damage to your opponent equal to the destroyed monster's original ATK.