Fate/Grand Order - Challenge Quest: Operation Secret Hot Springs Takeover 

thanks! you're the only person I can find with any help; can't find anything else on this fight...

thanks for the vid, i was tryna run a debuff clear arts team but should've just unga bunga dmg rushed it lmao

one of the few proofs that this fight exists at all pretty good, that insane damage was unexpected shame i dont have any of the good caster supports to double : (

Holy shit I just barely managed to beat this one, thankfully I had Musashi in my last slot, and her third ability cleansed the 10 burns on her and grants herself invuln. She also crit on a 20%, so that saved me.

had to use my 3 command spell, cause her DEF and HP, and super Orion can't ignore defense lmao

Winning this fight was all luck. Thankfully Meltryllis' cards kept popping up for use and I kinda screwed up forgetting to activate Leonidas' Focus on the second turn.