Aevan, the Deathseeker

{1}{b}{u}: Exile target creature card from your graveyard. Create a black and blue 2/2
zombie token creature with Deathtouch.
Whenever Aevan, the Deathseeker would die, you
may put it into your library second from the top.
If you do so, sacrifice a creature or pay {u}{b}
He wanders the world, seeking the very thing he once
hid from.