Machi, the Greater Might

When Machi, the Greater Might enters the battlefield you may have it fight target creature with greater power than it. If you do, Machi gains +2/+2 until end of turn.
Whenever a creature fights another creature put a +1/+1 counter on Machi.
"You claim you are the general, yet you are weak. Challenge me again if you feel like losing in the future."