Darth Nihilus

Menace, Deathtouch
When Darth Nihilus enters the battlefield,
destroy all other creatures.
Whenever another creatures dies, put a +1/+1
counter on Darth Nihilus.
Endless Hunger—At the begining of your upkeep,
if no creatures died last turn remove a +1/+1
counter from Darth Nihilus, if you can't, Darth Nihilus deals 3 damage to
each other creature and each player.