OK, cast Aura to your characters to use their Limit Breaks. If you could train more, your characters your jor would be easier. Your GFs are useful, too. Summon the GFs that are more familiar with your characters. Oh, and Selphie's Limit Break is cool. Try to use the best abilities. You may be lucky and cast Ultima twice or something like that. Also do not hit both of 'em. Beat Fujin first and then strike Raijin, or the opposite!