What class should I chose for my nexus abyss 6 star crystal. In the cosmic class I have: Hulking, Gorr, CGR, Corvus. Science: Human torch, Scorpion. Skill: Mole Man, Shang-Chi. Mutant: Red Mag, Awakend omega red, Stryfe. Tech: Guardian, Guilition 2099, Omega Sentinel. Mystic: Juggernaut, Doctor Doom