Draethul, King of Skulls

+1: Create a 1/1 black Skeleton creature tokens with menace and “When this creature dies, target opponent loses 1 life."
-5: Create five 2/1 black Skeleton creature tokens with menace and deathtouch.
-12: Sacrifice all Skeletons you control. If you do, target opponent loses twice X life, where X is the number of sacrificed Skeletons.