Chand-o, of the Massacre

+3: Chand-o, of the Massacre deals 3 damage to target creature or player. If a creature dies this way, draw a card and discard a card.
-2: Chand-o, of the Massacre deals 2 damage to each creature. If four or more creatures died this way, target opponent loses 3 life.
-7: You get an emblem with "Double all damage dealt by sources you control."