If you are checking for useless skills then I find Tsubakis Battle cry ability to make everyone auto battle to be worse than useless. it is just something that if you accidentally click might get you killed no idea why it is there tbh... If she must have it then at least add some buffs like how Final Fantasy X-2 did with assault where it caused haste shell protect and regen. Also Mirel sniper has 2 versions of the same skill the only diffrence being able to use it more than once seems like a bit of a waste.