Ahmier, Cuteness Connoisseur

Whenever you cast a non-human creature spell, you get an experience counter.

At the beginning of combat on your turn, you may make a 0/0 green squirrel creature token with indestructible, a 2/2 cat creature token with haste,
or a 3/1 green dog creature token with vigilance. If you do, remove all experience counters from yourself and put X +1/+1 counters on that creature where X is the number of experience counters removed.