Hiya @Kypros86
Thing that would definitly help me give the best advice is a full picture of your roster. That will show the maxed & available options.
Can do this either via screenshot/s of your roster or (i recommend) this tool here made by @GDIBass
Forum Thread for HeroPlan
Preliminarily I can say that both Wu Kong & Mist are indeed amazing heroes. Wu Kong is an offence game-changer, both against titans & very handy in mid-level raids… Also very useful in finishing off the S2 Hard Mode provinces.
I’ll hold further advice until I got a full picture of what you’re working with