Are any of these champions good for act 6.1?

Titosaurio

Are any of these champions good for 6.1 or should I try to get other champions if I wanna try to go for cavalier?

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StevieManWonder

You're fine with what you have
Primarily, you'll be using G2099, Corvus, Spam, Void (if you rank him up to at least r4), and Mister F. You're missing a good Mystic champ for nullifying, but I don't recall specifically needing one until 6.2.6