Goku

Super (Whenever this creature attacks alone,
double it's power and toughness until end of turn.)
{1}{r}: Goku fights target creature.
{1}{g} : Regenerate Goku.
{w}, {t}: Put a +1/+1 counter on Goku.
{x}{r}{g}{w}: Spirit Bomb (Remove X +1/+1 counters
from Goku, Goku deals X damage to each other
creature.)
I'm Goku!