I'm incredibly pissed off after every RBEL-related ADV game I've played — be it the actual tour or practice games for tests but the tier's revamp is Fundamentally Not Good.
On paper switching to a role based system is good logic and should be fine, with the actual sets in question are fine in a vacuum but in practice it's pretty much anywhere between complete garbage loadouts or "play either really aggressively or really passively to avoid losing to one (1) thing". Gen 3 is in a fundamentally weird place for oldgens in terms of both mechanics and mons, a lot of game can essentially boil down to a faster mon (which if a pinch berry set will probably trade significantly at worst) winning which with the generation's power level means you're not often killing something (also often pinch berry sweepers!) in one hit without having to trade significantly...again!
Now that seems contradictory but it's more often the case that even with 1-2 of the right sets can pressure teams into folding immediately. I've had games where 1 mon will literally dictate a whole game with enough snowballing (for example if I didn't
crit miltank the game probably ended there). On the flipside you can have teams where you'll load 1-2 unmons at once (I had a Ditto
and Unown in one practice game) and that's essentially just fighting handicapped.
A lot of the pinch berry sets are really egregious to me as well. More often than not trying to navigate it into a situation where salac setup/
swim petaya doesn't grab a few kills is really difficult in practice. Linoone in particular is a
very bad offender of this (and why I'm writing this post because of the replay where I just lost to it on fucking LEAD because of not calling a bad 50/50 on Explosion or gambling with offensive scare tactics with a fighting type). These are all just issues to pile on top of the variance you'd likely get in the average game anyway (para/flinch/crits/ rolling rest on sleep talk repeatedly etc) which just puts the tier in this messy, unfun place of playing. I'm imploring that after rbtt/rbel are over or even earlier if possible, a lot of these games get looked at and sets edited to something at least fun to play. I'll add more examples to this post if needed, but at the very least I hope people take this post to discuss and share their thoughts on the current version of the tier.