Xayide, the False Prophet

+5: Create a 5/5 black and red horror creature token with flying under target opponent's control. It has "This creature can't attack planeswalkers."
+4: Target opponent gains 4 life, then another player of his or her choice loses 4 life.
-13: Gain control of all creatures target opponent controls, then you gain life equal to that player's life total. That player's life total becomes 1.