Bongo, Simic Test Subject

{x}{g/u}{g/u}: Adapt X(If this creature has no
+1/+1 counters on it put X +1/+1 counters on it.)
Whenever one or more +1/+1 counters are placed
on Bongo, Simic Test Subject, draw that many
cards.
Bongo's toughness is equal to the number of
creatures with adapt that you control.