4* Rank up .....
Is either Yondu or Nebula worth taking to R4? Both are unduped. Could also go with Cap WW2, CB or a duped Hawkeye. but I've already got Elektra and GP at R4 skill, have duped AoU Vision and awakened Ultron at R4- and I have unduped Starlord at R3, but I'll have resources to R4 him by the time I dupe him. It seems that unduped, Yondu and Nebbie are more useful.