I am having a hard time pulling the trigger on upgrading my 4* champs though my 5*s havent been that great. I dont feel I get a tonne of t4cc resources. Right now I am tempted to upgrade my 4* Killmonger or 4* gwenpool. My Corvus is going to R4 once I get one last cosmic t4cc.
Is there any value do you think outside of arena to upgrade some of these 4*s. Or are there 4*s champs that should just be ranked up to R5 no matter what?
