Completed Raines event's CM and that was kind of a doozy. Fucking Seraphic Ray.
Anyhow, first run with Hope and Faith on Vanille was a bust, just didn't have enough damage. Then, I went for this:
L65 Fang: Blood of the Wyvern R4, Dragoon Jump R3, Pride of the Red Wings
L80 Lightning: Dismissal R4, Lifesiphon R4, Rebel's Might
L80 Snow: Banishing Strike R4, Saint Cross R3, Charismatic Aura
L80 Vanille: Curaja R5, Shellga R2, Ace Striker
L80 Sazh: Magic Breakdown R4, Full Break R3, Dr. Mog's Teachings
RW: HotE
Yeah, dunno. Fang ended up being my clutch, Dragoon Jump just deals horrifying damage and I could stack her default SB with HotE while BotW gives Dragoon Jump actual user-friendliness. The catch, though, was that a non-BotW Dragoon Jump ended up winning the fight for me: Bioga spam left me with only Fang and Lightning alive, then Fang jumped, Lightning got off another attack, which got Raines into killing range... then he used his physical chain (which would have killed Fang in even one hit and killed Lightning in two. The chain is -four-hit-.)... and then, Fang landed, claiming the kill. I thought I'd have to do the fight again because no way I'd have the needed medals to master after losing almost the entire party, but nope, lost one medal on damage and two on KO'd units, full-medaling everything else. Dragoon master race.