[ Machine / Effect / Union ]Once per turn, you can either: Target 1 "X-Head Cannon" or "Y-Dragon Head" you control; equip this card to that target, OR: Unequip this card and Special Summon it.
A monster equipped with this card gains 600 ATK/DEF, also if the equipped monster would be destroyed by battle or card effect, destroy this card instead.
ATK/ 1500
DEF/ 1300