Corpse Stasher

When Corpse Stasher enters the battlefield or
dies, you may search your library for a creature
card, put that card into your graveyard,
then shuffle.
Unearth {3}{b} ({3}{b}: Return this card from your graveyard to the battlefield. It gains haste. Exile it
at the beginning of the next end step or if it
would leave the battlefield.
Unearth only as a sorcery.)