Who should I use generic 4 star awakening gem on?

windup

I just pulled a 5* Apocalypse and 5* Prof X and will probably rank them up but I'll include the 4*s in the vote. I can pretty much max sig the mutants and mystics immediately. I play a ton with 5* AA and 4* Omega Red. Thanks all

Fear_of_Clowns2099

Guardian if you have the sigs, if not, Colossus

windup

cool thank you

mattress

Id go colossus since u already use OR.guardian or mags are good options also