u/FlowLast9104

I am stuck on the last floor, and I am always left with only 2 heroes: Thor and LR Diane. Traitor Meliodas and Blue Megellda always die in the third phase. The team I am currently using is Traitor Meliodas, Blue Megellda, Thor, and LR Diane. Are there any other team recommendations I could use to beat this Bird easily?

I'm not sure if this method gets me more enhancement stones. I feel like I'm just wasting time upgrading all the SR gear to +1, and it's really tedious doing them one by one....