I have nearly the same Team but B2 instead of Boba. I tried Boba against the "hot nightmare" but B2 worked better for me because he get so many turns thanks to stupid counterattacks from chaze + biggs... If palpatine survives to shock the blind monk you can shoot him down, he is my 2nd or 3rd target (first wedge).
My B2 will not cleanse the Baze Taunt, as a first action. I apply Debuff with him or Tie Pilot than chirrut cleanse, than my B2 get rid of all buffs than Vader and Palpatine release the dark force.