I'd actually prefer PSY over GEO, especially just because of how much CNJ has already claimed GEO's core stuff for its own roots (Onmyoji might be able to cover those parts of GEO while still being unique enough, but idk).

That said, I'd want more than just a "pure mana" / "mind-magic" reskin on an otherwise generic/rehashed Caster kit (or on, worse, a single bloat-inherent gimmick like Black/White Mana where the core distinction is solely nominal).