[The Devourer Of Worlds]

Master Ninja, Sorcerer (Mystic Knight) and Hunter for as many characters as possible. Then, put these characters on the ‘Bare’ class, equip them with two of your best swords and give them ‘Magic Sword’ and ‘X-fight’ as abilities. Now, as soon as you enter the battle with Omega, use ‘Bolt 3’ sword magic. Next time you get a turn use X-fight. You will attack 8 times, causing 6000+ damage per hit. This will make short work of Omega.