Gameciel, The Sea Turtle Kaiju - BLRR-EN075 - Secret Rare - 1st Edition - Battles of Legend: Relentless Revenge

Water. Aqua/Effect. 8. You can Special Summon this card (from your hand) to your opponent's field in Attack Position, by Tributing 1 monster they control. If your opponent controls a "Kaiju" monster, you can Special Summon this card (from your hand) in Attack Position. You can only control 1 "Kaiju" monster.