Random suggestion

[Minato Namikaze]

Your summons have access to any move that you have, so paying for a move that only a summon can use would be paying for a move of your own, but you'd Role play it as only the summon being able to use it. I doubt that this would be allowed.

Also

Assist characters have access to all of your Proficiencies, Powers and Moves. You may, therefore, wish to buy things and create moves specifically for your Assist characters.

Implying that it's already going to cost full price.