Demoria, Mayhem Mistress

+3: Target player discards a card. If it was a creature card, put a 2/2 black Zombie creature token onto the battlefield.
-3: Human creatures lose hexproof and shroud until end of turn. Destroy target Human creature. It can't be regenerated.
-13: Destroy all creatures. Each opponent discards their hand and loses life equal to the number of creatures put into their graveyard this turn.