Weedle

{g}: Monstrosity 1(Activate this ability only
when you could cast a sorcery. Give this creature one
+1/+1 counter, this ability may only be used twice)
Creatures that deal Weedle damage are given a
-1/-1 counter.
Weedle gains 0/+1 for each +1/+1 counter on it.
Weedle gains Flying after its second Monstrosity.