Corpse Connoisseur [Modern Masters 2017]

When Corpse Connoisseur enters the battlefield, you may search your library for a creature card and put that card into your graveyard. If you do, shuffle your library.
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.)