If this deck is primarily focused on the token engine then it looks like it's going pretty well. I would encourage you to add some more solid creatures such as
bishop of rebirth,
inspiring cleric and
vicious conquistador. These creatures are small enough that you can get some use out of them EARLY game and they'll still have an impact late game. Also adding the bishop gives you recursion for Mavren fein as well. Also famished paladin would go well in this deck since all the
lifelink would cause him to untap after attacks. what do you think about these suggestions?