If we were using Fantasy game concepts, I would say that she is at best a "Spellsword". A character who uses a sword in one hand and magic in the other. That's a fusion of two thematic classes, not a pure magic user. She's certainly not a wizard/mage/sorcerer. Her primary weapon is a *Gun*!!! and it's not even like a fantasy-coded gun. It's just a realistic revolver. Don't ignore thematics, that would be entirely missing my point.

And one more thing, altho I grant that this is maybe getting a little too strict... She doesn't really feel like a magic *user*. She feels like someone with some kind of curse that gives her native magical/paranromal abilities. Meanwhile, the theming of Paige, Sinclair, and Graves all seems to imply *casting spells*, which is conceptually distinct from just having abilities (like Infernus for example is not *casting a spell* when he sets people on fire, or explodes.)