Range/magic/holy/evade/heal/raise. No lie you can take her any direction and can fill any gap you need. People who don’t see the benefits of versatility lack the imagination. Not a linear champion at all.
Raise is crap. No passives for cast speed so she is going to miss Curaga's left and right on auto. Her male killer passive is probably going to become wind-eater in global. She doesn't get Full-Life and ?Black Mage? is a terrible sub-job. Her Limit is also pretty awful due to the range.
I really love the character so I hope they make some changes in global to make her better.
Her event gives her a bow with high Mag and Atk, you need better magic slap magic VC, Esper on her, you need her to do physical and also 🔥 evade comps give her Atk VC,Espers, She isn't lost just you are lol.
I think you should re-read what you just said. Dark Mage point is if Rosa could focus more on Magic damage rather than being low key magic and physical damage at the same time. Rosa could have been an OP Unit if her stat and skill is not misplace at all.