Mutant class rank up suggestion: 5*r5 vs 6*r2

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There are a lot of good rank up choices in mutant class. Currently I'm thinking 3 choices:
1. Rank 5 5* duped AA: AA at 5r4 already pretty amazing and I'm thinking he worth that r5. (I dun have 6* ver)
2. Rank 5 5* duped Pro-x: Pro-x at 5r4 and I'm getting used to his play style. Once he reaches 100 charges and 2 power bars then he ends the game. (I dun have 6* ver)
3. Rank 2 6* unduped Omega Red. I have 5* ver duped at r3 currently. Originally I was thinking to r4 him yet I stopped when getting his 6* ver.
4. Few mutant options are pending for future rank up: 5*r3 duped Havok / Wolverine / Cable / Emma + unduped Mister Sinister.
5. 5*r5 mutant in roster: Apoc / Domino / Colossus

awesomesauce

5* AA

OM is great, but without the duped ability he's missing out on a big part of his damage.
Prof-x is good too, but a duped AA will probably help the most out of these guys IMO, especially since you have apoc ranked up.

The_beast123

5* AA

And eventually Professor X.

Yodabolt21

5* Prof-X

AA is the better champ, but I think AA at r4 is fine until you reach act 7…. Prof X gets a bigger boost at r5 IMO

THEComic23

Other mutants (such as)

Colossus has been clutch for me ever since his buff

DawsMan

5* AA

Rank up your awakened Omega Red unless you don't need/like him. AA is best option, professor x and apoc should be next.

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THEComic23 said:

Colossus has been clutch for me ever since his buff

Colossus at r5 already.

Reference

Done. Based on majority votes. Thanks.

Real_Madrid_76_2

5* AA

You have apoc so AA and cable are best options dude