Been awhile ago since I recorded this video but never uploaded it so I don't remember the gears used for this video I will leave a build below nonetheless to what I think was the build for this run.
Self buff of 200% ATK for Hyoh.
MS Nichol water imbue for Hyoh and 175% atk buff for Jecht.
Seabreeze Dark Fina with her 110% water imperil.
Ang has preemptively buff himself with fire imbue and -90% fire imperil from LB from a turn before and has buffed himself with 200% ATK buff.
Build : ffbeEquip.com/builder.html?ser...
The only thing i'm not very sure about the build is whether I had brave soul or not at that time.