Luminous Stag

Graciousness (When this creature comes into play,
you may put a number of -1/-1 counters less than this
creature's toughness on it. If you do, distribute that
many +1/+1 counters among any number of
creatures you control.)
Before combat on your turn, you may exile Luminous Stag. If you do, return it to the battlefield under its owner's control.