Target 1 "Photon" or "Galaxy" monster in your GY; Special Summon it in Attack Position and equip it with this card. It cannot attack or activate its effects. If it would be destroyed by battle or card effect during the Battle Phase, you can destroy this card instead. If this face-up card leaves the field: The equipped monster's ATK becomes 0. You can only activate 1 "Galaxy Zero" per turn.