Kalyron, the Undying

+3: Destroy target noncreature permanent. If it was a land, Kalyron deals 2 damage to that permanent's controller.
-4: Kalyron deals 3 damage to up to 2 target permanents.
-20: Target player loses 30 life. If their life total does not become 0 or below, you may repeat this process on another player.