5* Unduped Colossus, Archangel & Nightcrawler. Who do i max out?!

Sean_Grizzy

I've had Archangel for a little while now, but I just got Colossus & Nightcrawler a few days ago. All are unawakened, but I need a strong Mutant to get me through the rest of Act 5. Who do I max out???