Dogoran, the Mad Flame Kaiju (CORE-EN087) 1st Edition [Clash of Rebellions]

You can Special Summon this card (from your hand) to your opponent's side of the 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. Once per turn: You can remove 3 Kaiju Counters from anywhere on the field; destroy all monsters your opponent controls. This card cannot attack the turn you activate this effect.