You have pretty good roasters.. Aa, GR, Venom, Sentinel, Medusa, IMIW... All are pretty good.. Definitely go for it.. Just ra k em up
Agree go for cavalier.Just for the 11k features!!!
It's possible, but you may want to rank up your 5* roster a bit more before you try. Medusa will be great for the ultron and sentinel bosses and omega red is one of the best options for the crossbones boss but I'd wait until you have at least one max 5* champ or at least 4 rank 4 5* champs or else the fights are gonna be really long and you're gonna end up using a lot more revives and potions. I got the Cavalier title yesterday, going through 6.1.2-6.1.6 all in one go and ended up using about 600 units. My roster was a rank 5 blade, rank 4 SS, rank 4 iceman, rank 4 AA, and rank 3 venom for every quest. I'm free to play as well so I saved up a bunch of units just in case so I'd recommend you do the same and maybe go for elder's bane first so that you can rank up your champions more. Good luck!
I’d wait and go for Elder’ Bane first
Wow you have good roster