Just wanna say that since this game is played by so few people at the same time, you very rarely get a matching rank player against you.
Playing against bankai unohana, love and butterfly aizen when you barely have any characters unlocked is beyond unfair.
Thereare characters that can be unlocked very late in game that can do everything, heal, remove effects, damage, permanent affliction...
its not fair that those characters unlocked later have combined skills of several characters from earlier missions.
I would strongly suggest that creators should think about what skills they give to their new characters. Its not about this one being super OP against the previous character.

If its ladder you are complaining about then you get a lot more XP by winning than by losing when you vs a higher rank player. If you manage to win 1 out of 5 you are still getting way more XP.

Exactly this

Not ladder at all

Then I dont understand your point, Sun. This is a niche game to begin with... There aren’t that many players as you said, and in quick play it doesn’t really matter. Everyone is just doing missions there. What better place to learn what each character does than in quick play? If you’re testing a team, you should do it in ladder, or a private match IMO.