Nordifail, Human's Bane

+1: Put a -1/-1 counter on target creature. If that creature was a human, put 3 of those counters instead.
-6: Create 3 5/5 Horror Creature tokens with deathtouch and a 1/1 horror goblin creature token with infect.
-13: Put a -1/-1 Counter on each creature your opponents control. then proliferate 3 times. then create a 13/13 Horror creature token with infect.