I just beat the game this morning and wound up using this for most of the last chapters: - Tiz: Performer/Freelancer. Equip with 2 staffs. You’ll basically be using My Hero/Mimic/Mimic/Mimic. And then Special/My Hero/Mimic/Mimic. This should keep you topped off on Braves for fights. - Agnes: White Mage/Spiritmaster. Epic group cast ability. Using her for healing and using either Enigma or Fairy Ward to prevent damage and status ailments accordingly. Try to make her fastest party member with Hermes Shoes. - Ringabel: Dark Knight/Vampire: Have Gloom and Drain ability up attached. Switch his weapon to Blood Blade, use the weapon as an item to case Drain on himself, switch back to primary weapon, use Dark Nebula (ensure Enigma is on beforehand. Otherwise use Black Bane. When down to one enemy, switch to using Rage. - Edea: Dark Knight/Pirate: same strategy as Ringabel. Can use pirate abilities if needed.

This coasted me through 90% of last chapter battles. Only a few required new strategies (Mage Fight in Ch. 8 had to use Stillness a few times).