Normon, Wandering Decay

+1: Put a -1/-1 counter on up to 2 target creatures.
0: Create a 1/2 Elemental creature token with, "As long as this creature has a -1/-1 counter on it, target creature an opponent controls gets -1/-1"
-7: Destroy all creatures with -1/-1 counters on them, create a 3/3 Elemental creature token with trample for each creature destroyed in this way.