This team is easy mode.
again.... TG to the rescue.
Kitty (durandal) aRas (Aurius) Achates (Rod) and My man a pimped out highly geared Taranor Guard (DDJ)
Stage 1: simple: just burst down the purple Rorschach test boss . Crazy easy.
Stage 2a is basically the same with a minor twist. You gotta hit the spinning top adds. One of them dies and stuns the others. The others when killed counter and revive. Which one is the right one is RNG. Find it and then burst down SBA to phase 2.
Stage 2b the adds are now upgraded. you need to crit hit each one 4 times to put them into "dazed" mode. Once both are dazed everyone loses immunity and you can break and burst down SBA. Probably will have to do this 2-3 times.
Its a cakewalk with this team.
Enjoy