Feral Lurkghast

Ambush {2}{b}{g} (Whenever one or more creatures attacks you, if this card is in your hand, you may play it at instant speed for its Ambush cost. If you do, return it from the battlefield to your hand at the end of combat.)
When Feral Lurkghast destroys a creature look at the top card of your library. If it is a land, put it into play.