Found art of an old Black Mage self-insert for when I was experiencing Final Fantasy IX fresh.
Her primary stat-boost mechanic is that she has Vivi's spell pool but not his spell damage output and can't help Steiner use Sword Magic. Instead, her basic attack gains a scaling damage bonus based on every spell she masters, plus an additional stat based on what weapon she's equipped with. Her strongest weapon scales based on Tetra Master cards because she spent a lot of her time studying the mist and figuring out how to tame and converse with the monsters that emerge from it.
Her designation is No. 249. Her actual name is Cameron