i couldnt be arsed to start a new game so i just tried the omega one. defeat him without bolt magics you say?

omega has felt the wrath of shinangel! and i was only on level 50

heres what i did

i equiped bartz with the strato and x-fight and 2-handed abilities. my other three characters i equiped with time magic, white magic, and hide. they all wore winged shoes so that gave me first attack. i made my first three characters hide and made bartz use x-fight (this averaged about 3000HP but reached 6000HP on those regular criticals which popped up.) Omega countered and killed my character. i waited for omega to attack again befor bringing out one of my hidden characters (so they attacked first seeing as he had just executed his) they used time magic "quick", then used "arise" on bartz, then went back into hiding. bartz took a hit from a beam cannon but still had half his HP. he used x-fight again and this time when omega countered, he missed twice and left bartz confused. i waited until he was dead before doing as i did before to arise him. i kept the pattern for a fair few turns until omega finally bit dust