Vix, Hellburdened

+3: Flip a coin. If you win the flip, Vix deals 3 damage to target creature. If you lose, she deals 2 damage to herself and you lose 2 life.
+1: Vix deals 2 damage to each creature. If there are no creatures on the battlefield, she deals 3 damage to each player instead.
-11: Vix deals X damage divided as you choose among any number of creatures or players, where X is the amount of creatures in graveyards.