Varan's Transformations

On your upkeep get a Behemoth, Fast, or Grow counter.
On your end step put X +1/+1 counters on all creatures you control and gain Y life, Y is the
number of Behemoth counters, X is the Growth counters. Creatures you don't control get -1/-1 for
each fast counter on Varan's Transformation.
Unable to stop transforming he hopes to learn control.