Levi, Aspect of the Widow

+1: Put a -1/-1 on target creature you control. It gains Deathtouch and Wither until end of turn.
-3: Draw a card for each creature you control with a -1/-1 counter on it.
-7: Distribute X -1/-1 counters among creatures your opponents control, where X is twice the number of -1/-1 counters on creatures you control.