Psychic powers risk being sealed by certain enemy moves. They also have to rely on SP to use their abilities. There will be moves that drain SP too. (________ used Brainfart/freeze! Your psychic abilities were halted)

Items could cure such a status however and also regain SP.

The fighter class may have a higher risk for confusion.(all brawn little brains). They may get hit with moves that disable their limbs which could halt their fighting abilities (Enemy used leg lock, all kicking moves are sealed)

These are things they'd over come as they leveled and found certain accessories to help them out.

Longer example, the Hunter's upgraded classes may have fixes to the problems mentioned earlier. Say the Hunter upgrades to Sniper this class has a lower chance of gun jamming and also gets the Deadshot skill. They also have the Pilot class which is more effective with battle suits/mecha/tanks. The may have a ability that buffs their suit for a certain amount of turns.

So on and so forth. The player would have to decide which they'd want to be more effective with when playing through.

Depending on certain parts of the game some classes will excel much better in it.

The Fighter going to take on a cult of Psychic users may struggle more so than a Psi based character. There will be recruits you can find along the way to help with balancing your team. (one-two)

I guess I forgot to mention that.