Which champion should I choose from the 7* crystal selector

I am not sure who to go for I’m lacking in both mutant and cosmic 7* plus I still have to do all the end game content epoch , eternity of pain plus should be good for Aw and Bg just completed one run of act 9.1


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I think I’d probably go Sunspot bc I prefer to upgrade champs I’d play with instead of defensive champs. As a paragon player, I assume you’re still looking to upgrade your 7* roster.
Counters evade/auto block, can heal very well, armor breaks, reverses healing very easily, resistant to poison, bleed, and degen, and access to very high damage. He is amazing.