Ezriel, Razer Of Souls

Flying, deathtouch, lifelink
At the beginning of each upkeep exile each graveyard, if no creatures where exiled this way, sacrifice Ezriel, Razer Of Souls. Otherwise draw
a card for each creature exiled this way. Return
them to the battlefield under your control with
decay counters at the beginning of your end step.
Whenever Ezriel, or a decayed creature
dies exile it.