Tyra, Planar Destroyer

+2: Destroy target creature or artifact, deal 2 damage to it's controller.
-6: All creatures get -3/-3 until end of turn, create a 6/6 black demon token with flying and trample.
-13: Give each player an emblem with: "Whenever you draw a card, you lose 3 life. Draw an additional card at the beginning of your draw step."