Originally Posted by
Mirage
I can't think of a way to build Aeris to be as good a physical fighter as more or less anyone else in the game. She has low HP, doesn't do full damage from back row, has low strength, has no directly offensive limit breaks. Anything you can put on Aeris to make her a better fighter, you could instead put on anyone else and get an even better result.
I'm very interested in hearing how she can be made into a good fighter. If she's not going to use magic, you'd be better off with just about anyone else instead of her, which makes her a mage/support character, not a balanced all-purpose character.