Zega, Disturbed Pacifist

Defender, Voidtouch (Whenever this creature deals damage to another creature, exile that creature until
this creature leaves the battlefield.)
Insanity 2 (At the beginning of your upkeep, flip a
coin. If you win the flip, put two +1/+1 counters on
this creature.If you lose the flip, deal damage 2 to it's controller and itself.)
Whenever Zega deals combat damage to a player,
that player loses the game.