I think that i'll use my dark team with cassi with black propaganda as i don't have def buff nor healer+it cover for chaos magic and black propaganda.
as for ragnarok, hopefully i'll find some during burst time, if it happens i'll go with fire team.
Dart- frame B debuf+ ambush as ex ability to lower defense.
brynhildr+ svarog- attack buff
agni+ 'fine gun- fire attack boost
ares- self attack boost
so hopefully it'll help me to deal some nice damage during this time.