Zoe, Aspect of Twilight

+2: Zoe, Aspect of Twilight deals damage equal to her loyalty to target creature or planeswalker and you gain that much life.
-1: Zoe, Aspect of Twilight gets a loyalty ability from any planeswalker until end of turn. You may activate Zoe, Aspect of Twilight again this turn.
-3: Put a sleep counter on each creature an opponent controls. Creatures with sleep counters can't attack you or planeswalkers you control.