it's kinda late, but here my battle against ragna amaru with fire team:

sadly, the bow's effect didn't work so i was at -35% def debuff instead of -45%
and the difference with it and using raguel instead of brynhildr was huge, when all debuff landed and i used brynhildr, ares could hit 722K with her burst even with lower level belial while here it was just like that...
oh well. at least it's a clear