So, curious as to how you fight this boss... i've been kinda winging it with my light team and HOPING some form of atk down sticks (i got 3 of them after all). also got mordred with chaos magic cause those double/triple hits hurt.... that wind resist is annoying as hell really and only thing i got to stick was drown (which is weird cause it never failed from mordred) and VERY occasionally sol's atk down
only other things i could consider is maybe joan or andromeda, but even then, i'm still likely to lose 1-2 characters per fight like my first 3 attempts... (although there was at least 4-6 people in each raid).
i'm gonna need to learn how to take this boss on at some point considering light is my main and wind is my secondary....