Doomfist, Prosthetic Fighter

First strike, reach, vigilance
Whenever Doomfist, Prosthetic Fighter attacks,
he gets +3/-3 until end of turn.
Whenever Doomfist, Prosthetic Fighter blocks,
he gets -6/+8 until end of turn.
Whenever Doomfist, Prosthetic Fighter deals
combat damage, you gain 1 life.