Avatar Kuruk

Lifelink

{u}: You can only activate this ability once per turn during
an opponent's combat phase. Sacrifice a creature you control and 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 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. "