[VID] Clone Sergeant Phase 1 is INCREDIBLE!

I know Clone Sarge is pretty good - I even use him on my arena team (probably not the best choice but he is fun). The question is this.... I've been thinking of using him in T7 raids, but I only have Rex at 4* - so do you think CS can be used in the raids despite not having Rex? I have a max Fives and generally use Phasma, AA, Rey, Fives and Yoda (I have a g8 QGJ that I am working on gearing, I don't have GS, the only other 7* worth mentioning would be max STHan)