Rot-Wing Drake

Flying, Deathtouch.
{p/b}{p/b}, {t}, All non-Black creatures get -X,-X, where X is the total number of Black Mana Symbols among permanents you control. If a creature dealt damage this way would die, exile it, then create a 1/1 Black Zombie creature token with Deathtouch.
"He could simply devour you like most horrors would, but he likes to make things personal. He'll use your corpse to kill your friend, then use that corpse to kill your village." - Gregor the Death-Hunter