Brawn, Byte-sized Brawler

More Than Meets The Eye {g} (You may cast this card converted for {g}.)
If Brawn becomes blocked by one or more creatures it
fights those creatures instead.
Whenever Brawn fights, untill end of turn it gets
+X/+X equal to that creatures converted mana cost.
At the beginning of your endstep, if Brawn didn't fight
this turn convert Brawn.