Yunalesca elite, went down like a chump. My x offensive synergy is crazy, so I rolled three attackers with >400atk each double cutting with a planet protector rw. Other two were yuna with curaja and Shellga and a musk stick w mogs teaching just in case a group heal needed and yshtola with mako might, thyrus, armor breakdown, protecga.
Each double cut was hitting for between 6 and 7k per slice, so you do the math, I barely had stone skin up before she entered her second form.
X is all offensive synergy for me, only have a wizards armlet ++ and a bright armguard 4 for defense.
Lightning steel
Variable steel
Shimmering blade
Left at home was the brotherhood, I could have rolled four attackers hitting at12-14k per turn. If I had sg instead of ssII, I would have thrown tyro into the fray. Granted, tyro wouldn't quite hit those numbers, but probably clear 8k per turn.
We'll see how he ultimate plays out of this is a viable strategy there.