James Howlett, the Wolverine

Unrivaled Lethality — Double all damage James Howlett, the Wolverine would deal.

At the beginning of each end step, if James Howlett, the Wolverine dealt damage to another creature this turn, put a +1/+1 counter on him.

{1}{g}: Regenerate James Howlett, the Wolverine. (The next time he would be destroyed this turn, instead tap him, remove him from combat, and heal all damage on
him.)