Board Thread:News and Announcements in game/@comment-32478719-20170318041729/@comment-32347962-20170320152218

Is it because they require medals from their corresponding event that aren't Dokkan Events?

I think the characters that require the Dokkan Medals from Dokkan Events (Not the Battlefield and WT Medals) have a better chance to improve.

But even so, they're all improving in a way, little to big.