Aatrox, Harbinger of Oblivion

Annihilator 1, Trample

When Attrox, Harbinger of Oblivion enteres the battlefield, you may exile target creature from a graveyard. If you do, Aatrox gained +X/+X, where X is the exiled creature's power.
At the beginning of your upkeep, you may sacrifice a creature. If you do, Aatrox gains +1/+1 until end of turn.

"The blade is but an extension of my will. The worlds I conquer, they are all part of the endless hunger."