I'd ban Charlie. Yes, doing so would pretty much kill Pussycats in Elo, but that doesn't make her any less annoying. I'd save Marco, the poor guy. I have yet to seem him used elsewhere. He's good, but a weekly ban should be enough.
Caelus needs to be staff banned. He falls into the "receives most votes every week and is almost always banned" category so it would make sense. Skeelz would still have Aylen as a 5* replacement who is not as powerful, but still awesome.
I wouldn't unban any cards, since I believe that there is a reason they are banned.
Saving Ratanah would open the doors for the most OP 12/13* half deck (Yookie, Noodile, and either Arno or Rico).
Odor Blocker I disagree. Lehane made room for both Hawk and Copper...if you want a 5 star you need a 2 star and lehane has the strongest 2 star stats in the entire game. She makes room for those 2 monsters while those monsters cant be together without their lehane.