Yggdrasil, Rebirth Engine [Assassin's Creed]

When Yggdrasil, Rebirth Engine enters the battlefield, exile all creature cards from your graveyard.

T: Exile the top three cards of your library.

4, T: Put a creature card exiled with Yggdrasil onto the battlefield under your control. It gains haste until end of turn.
Activate only as a sorcery.