Rrashog, Legion Breaker

+2: Sacrifice up to one creature. Rrashog deals damage equal to that creature's converted mana cost to another creature.
-3: Lose 3 life. Rrashog deals damage to target creature equal to twice the amount of life lost after its controller's last end step.
-11: Rrashog deals 6 damage to all creatures. You gain life equal to the amount of damage dealt this way.