Nefaria is good for long fights and has great utility, works excellent in aw and helps in lot of nodes in different quests . But if you are searching for bg u can upgrade r skull also.@MASTERPATRICK
Count Nefaria was my second r4 champion and I have no regrets. I just feel that he solves a lot of situations that are frequently annoying me. He's packed with utility, to the point where he should really hit like a noodle to compensate for it all. But he doesn't and Kabam are somehow just cool with that, hahaha.
Red Skull was in consideration when I had to r4 my first champion, which was a Tech rank-up. He's definitely a worthy candidate and if I get a Tech gem in the future, I'll probably pump it into him with no question. But aside from on defense, I don't think he's a better champion than Nefaria.
I took red skull from r2 to r4 without every playing him as soon as the ordeal came out. I remember hating Apoc, Weapon X and Domino, and since I couldn't use Nimrod, he was my best option. He made the fights very easy, and then I learned to love him. He's almost always on my team now (not not simply because he's a r4).
I do have a 7* Count, but I've never felt the need to learn him as my other science champs seem to handle every situation needed this far.
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But if you are searching for bg u can upgrade r skull also.@MASTERPATRICK
For anything else - Count
Red Skull was in consideration when I had to r4 my first champion, which was a Tech rank-up. He's definitely a worthy candidate and if I get a Tech gem in the future, I'll probably pump it into him with no question. But aside from on defense, I don't think he's a better champion than Nefaria.
I do have a 7* Count, but I've never felt the need to learn him as my other science champs seem to handle every situation needed this far.