Ob Nixilis, Cursed King

+2: Each player may sacrifice a creature or discard a card. Each player that did may add or remove a loyalty counter from Ob Nixilis, Cursed King.
-3: Each opponent loses X life, where X is your devotion to black. You gain life equal to the life lost this way.
-9: You get an emblem with "Whenever a creature dies, draw a card. Whenever you draw or discard a card, each opponent loses 1 life."