Well, just to move things along, we'll roll with B/C as the cutoff point unless there's a sudden surge of disagreement.
That means Rhydon, Cloyster, and Dragonite should all be discussed, as they're around the cusp of OU and UU (which seems like a pretty accurate trio to be riding that border imo).
I think Dragonite should definitely remain in C. Dedicated Wrap teams are extremely unreliable and honestly tedious to both use and face. I would much rather use a solo-Wrapper on a team that can still function reliably if you have bad luck with said Wrapper. Dragonite can actually be kinda cool then, with free switches from Wrap being particularly fun. The poor accuracy tends to catch up with it eventually, though, and that's assuming you even get a good setup opportunity. For an important game, I'd rather have something like Cloy, Slash, Kang, Persian, Arti, etc. than Dnite.
Cloyster jumps out as the best mon in C, albeit a bit less common than most of B. I still think it's worth OU status, though. It can use Clamp for free switches the same way Dnite can, but it also offers more team support. Massive physical bulk is always handy, especially since standard Tauros actually struggles against it. It also has the same strength Explosion as Egg and a useful Ice typing. Competition for a teamslot vs the other Waters is tough, but it plays so differently that it's not really outclassed. I think it fits in quite well with the likes of Golem and Gar.
I also still think Rhydon should drop to C, but it's a really tough case. I went into some detail above about how the mechanical changes were bad for Rhydon, though some metagame shifts have also been good for it. It still has a useful niche in OU, but you have to build with it more carefully imo. It doesn't have Golem's scare factor, making it easier to play around and bully past. It needs para support and teammates that are bulky enough to repeatedly take hits for it, both of which are things Golem appreciates but doesn't necessitate as much. That reduced flexibility when teambuilding is its biggest downfall. I don't think it's "bad", but I also don't think the other mons in C are "bad" either, just harder to build with.
That means Rhydon, Cloyster, and Dragonite should all be discussed, as they're around the cusp of OU and UU (which seems like a pretty accurate trio to be riding that border imo).
I think Dragonite should definitely remain in C. Dedicated Wrap teams are extremely unreliable and honestly tedious to both use and face. I would much rather use a solo-Wrapper on a team that can still function reliably if you have bad luck with said Wrapper. Dragonite can actually be kinda cool then, with free switches from Wrap being particularly fun. The poor accuracy tends to catch up with it eventually, though, and that's assuming you even get a good setup opportunity. For an important game, I'd rather have something like Cloy, Slash, Kang, Persian, Arti, etc. than Dnite.
Cloyster jumps out as the best mon in C, albeit a bit less common than most of B. I still think it's worth OU status, though. It can use Clamp for free switches the same way Dnite can, but it also offers more team support. Massive physical bulk is always handy, especially since standard Tauros actually struggles against it. It also has the same strength Explosion as Egg and a useful Ice typing. Competition for a teamslot vs the other Waters is tough, but it plays so differently that it's not really outclassed. I think it fits in quite well with the likes of Golem and Gar.
I also still think Rhydon should drop to C, but it's a really tough case. I went into some detail above about how the mechanical changes were bad for Rhydon, though some metagame shifts have also been good for it. It still has a useful niche in OU, but you have to build with it more carefully imo. It doesn't have Golem's scare factor, making it easier to play around and bully past. It needs para support and teammates that are bulky enough to repeatedly take hits for it, both of which are things Golem appreciates but doesn't necessitate as much. That reduced flexibility when teambuilding is its biggest downfall. I don't think it's "bad", but I also don't think the other mons in C are "bad" either, just harder to build with.