Asari, Goddess of Witches

+10: Summon 4 2/2 zombies, 2 4/4 flying demon, and 1 8/8 dragon with "when this creature deals damage opponent discards their hand.
-10: Exile all permanents you don't control. Gain 20 life. Return return 3 permanents to the battlefield under your control
-20: Target opponent loses the game