what class 6* nexus should I pick?

wheayoba9

need your advice on that. my roster of 6*s:
mystic: doom, sasquatch, rintrah, mordo + some trash
tech: nimrod + trash
mutant: not a single champ
skill: jabari, ronin
cosmic: odin, angela, venompool + trash
science: mr negative, og hulk, sandman + trash

Jeancrb

I would say skill or mutant

Shake_a_Quake

Mutant on a priority, skill and cosmic next.
I would personally suggest a cosmic because they are the undisputed game-breaking class at the moment, and they make contents easier to fight.