Anulax, the Enslaver

Anulax, the Enslaver enters the battlefield with a number of +1/+1 counters on it equal to the
number of creature cards in all graveyards.
Whenever a creature enters the battlefield, it's controller mills a card. If that card was a creature
card put a +1/+1 counter on Anulax, the
Enslaver.

The dead feed it's ambition.