Yes Ultima is broken, nerfing it to not 1shot may be a good choice. But I personally want to discard it to gives the gameplay more variety. Not relying on Ultima for damage.
Halve MP is not completely OP on its own, but it easily breaks some skills. Increasing their MP cost will make them unuseable without Halve MP. Makes balancing too hard. Idk, my current approach is to disable it for now.
Bonus AP being picked almost everytime and no time to experiment with other privileges is a bad design, but disabling it will make AP gain too slow. So yeah, maybe its better to disable it and increasing base AP gain (or decreasing AP required).
There is no need to balance Turbo MP, just balance anything that gains more MP and Turbo MP wont be overpowered
Halve MP is not completely OP on its own, but it easily breaks some skills. Increasing their MP cost will make them unuseable without Halve MP. Makes balancing too hard. Idk, my current approach is to disable it for now.
Bonus AP being picked almost everytime and no time to experiment with other privileges is a bad design, but disabling it will make AP gain too slow. So yeah, maybe its better to disable it and increasing base AP gain (or decreasing AP required).
There is no need to balance Turbo MP, just balance anything that gains more MP and Turbo MP wont be overpowered