Mother of Graves

Flying, Deathtouch, Protection from Green
Creatures you control but don't own get +1/+1
{t}, Sacrifice a creature you control: Return a creature card from a graveyard to the battlefield under your control. It is a Vampire in addition to its other types. Activate this ability as a sorcery.
"I expect you're thirsty after digging your way out. Here, have a drink."