How to make the "Casters" Unique.

[Shurrikhan]

I don't mean to sound rude, but you seem to have completely ignored the fact that the class system in this game is designed to return Final Fantasy to it's roots. They are trying to bring utility back from the abyss.

Please go play more Final Fantasy games.

The class system returning us to our roots? No. The job system, sure. And that's not to say I think the roots are some holy site anyways. If anything, the class system has the potential to make casters far more unique and further specialized according to the player's own needs and styles by allowing the mixing of schools. Though that may take some modifications to how we gain abilities, hence "potential".

But at that point you might well see spell types making their obvious jumps into utility such as a WHM's light-type abilities being usable for blinds, or the elemental debilitation BLMs already have becoming more... intuitive.