Khorne - Lord of War

At least 20 creatures (nonartifact) must have died before this can be played
Honor Bound: If a creature has not attacked or blocked, it is exiled
All creatures you control have trample and menace
Any demon with a {r} in its mana cost can be sacrificed, the number of {r} can be used to assist
in summoning Khorne
If an opponent's or one of your creatures has not
died on your turn turn, exile Khorne