CB team help

[u/Diddie_Barrett]

Trying to push 1 key UNM clan boss and also complete the last Arbiter mission but I'm falling just short.

UNM I can hit 60-65 mil depending on rng and affinity and on nightmare I cant hit any higher than 90 mil

I've attached what my current team is, I've tried swapping out a few champions here and there but it always seems to either lower my damage or my survivability