Ghor, Scourge of Kressh

+1: Sacrifice a creature. If you do, Ghor, Scourge of Kressh deals 3 damage to target creature or planeswalker.
-3: Destroy all creatures. You lose 1 life for each creature destroyed this way.
-9: Mill up to 13, then return any number of creature cards from your graveyard to the battlefield.