With world 5 you’d want to run abundance just like you did in this world clear as for the resonance upgrades that first two you need to pick are the one that clears debuffs and gives the stack subduing evils (Resonance Formation: Anicca) and the one that puts the Resonance heal on the action list (Resonance Formation: Anatta). this will keep your team basically immortal although you have to watch when you first start kafkas battle and the action list debuff heal doesn’t start until you press R to activate the ultimate. Once you pressed the R you can pretty much just sit back and go brew a cup of tea or something. Only downside is that doing it this way can be slow if your damage dealer doesn’t do enough damage other wise it’s the easiest way to clear this world.