Avatar Kuruk

Lifelink

{u}: You can only activate this ability during an opponent's combat phase. Sacrifice a creature you control. If you do, prevent all damage that would be dealt to you by a target attacking creature that opponent controls. Remove that creature from combat. During your next turn, Kuruk gains trample and gets +X/+X and until end of turn, where X is the attacking creature's power.

"You must actively shape your own destiny, and the
destiny of the world."