Iousat, the Unworthy

+2: Sacrifice a creature. If you do, up to one target creature gets -5/-5 until end of turn.
-2: Exile target creature card from a graveyard. Put a token onto the battlefield that's a copy of that card except it's a 1/1 black Spirit.
-10: You get an emblem with "Whenever a creature dies, each opponent loses 2 life. You gain life equal to the life lost this way."