Srog-Drak, the Unrelenting

Flying, deathtouch
When Srog-Drak enters the battlefield, return target creature card from your graveyard to the battlefield. Then, if Srog-Drak didn't enter the battlefield from a graveyard, sacrifice it.
{b/g}, Sacrifice three other creatures: Return Srog- Drak from your graveyard to the battlefield. It gains haste until end of turn.