ADVICE ON WHICH CHAMPION TO RANK UP

Bigramrod69

Hello, just looking for some advice on which champion I should rank up. I want to start ranking up more 6*, but my 6* are not that great, I was thinking 6* Cable because of colossus synergy. I am just starting act 6 chapter 3

Bigramrod69

I mean apocalypse synergy, not colossus lol