My setup I used which worked on first try was:
Lightning: USB/BSB2/LMR - Lifesiphon/Lifesiphon - Thunder+ RM
Ramza: USB/Chant - Full Break/Power Breakdown? - Mako Might
Tyro: Wall - Protectga/Wrath - Ace Striker
Edge: SSB2 (Hastega/Last Stand) - Steal Power/Steal Defense - Dr. Mogs
Y'shtola: BSB - Wrath + Curaga (I'm a cheap pleb and usually have wrath/proshellga) - Battleforged
RW: Cloud USB.
I took it slow at the start and just built SB on Lightning until she had 3 bars, and just healed/kept wall up. After she had 3 bars, I did Cloud USB RW on Lightning > Ramza USB > Ramza Chant > Lightning USB > Lightning BSB2 x2. That killed it pretty quick. Like the above person said, you should have no issues with a strategy similar to his or mine. I may have had a dispel ability on someone there, I don't remember. As long as you can survive the beginning, you should be good.