Transitioning away from ability apps

[Velkor]

also yeah we can probably do the original idea (or similar) in the meantime since obviously this overhaul is more involved/drastic

That sounds like a good idea. But since I'm not sure its clear with this system the one planned would there be a limit to the signatures. With both of the spells used could someone could just keep buying master level signatures?

The more restrictions you add the more people will end up min maxing. But if you add none you will have people likely buying whatever they can as soon as they can and abusing it.