I guess I should propose a few changes to B- Rank.
-> D/off the list: This thing is just bad. Yeah it has Speed Boost+Baton Pass but a massive Stealth Rock weakness and being really predictable are not good things for it. Baton Passing sets are kinda gimmicky in general, as we have seen with the recent drop of Gorebyss, and Ninjask is worse than Gorebyss and in general isn't a good Pokemon. I haven't seen anyone use it to any success at all either, which says a lot about it.
->C+: I like Slurpuff, but I feel like B- is a little bit too generous for it. Its biggest problem is that it has a bit of trouble setting up. It's a pretty monstrous sweeper that can end games easily, but only if it manages to set up. Belly Drum sets are handled well by Aggron, and Calm Mind sets are not as immediately threatening as the Belly Drum set. Also, Unburden's mechanics mean that Slurpuff only has one shot at sweeping; if it's forced out while trying to sweep, it's over, which somewhat limits its usefulness. It's definitely a threat and is viable but C+ is probably more appropriate here.
->B: Basically the best Sticky Web user, it should be higher than Galvantula. It has decent bulk so it can reliably set up Webs, and also do it repeatedly over the course of the match. Can also set up Rocks too so with Shuckle you don't have to dedicate another slot to the much needed SR. Somewhat annoying with Encore or Knock Off as well as Infestation. Has a lot of problems still but it's basically the best at what it does, it's a bit better than Galv in terms of Web setting so it should be higher than the spider.
->C: Fairly situational Pokemon. It's a decent Dual Screens user that can use Dual Screens+Memento to help things like Haxorus or Infernape set up easily, and can spread paralysis. But its typing is kinda bad defensively and it has like no offensive presence so outside of one small niche it's not really worth using. It's pretty niche.
->B: This thing is surprisingly really good. In Sand, this thing is basically the ultimate revenge killer. It sweeps so well because it has good power with 110 Attack and a nice offensive movepool to basically hit everything in the tier hard: Superpower donks Aggron, Wild Charge gets at Aerodactyl, and Crunch is nice for Chandelure. With Sand up, this thing is basically impossible to revenge kill. It's pretty dependent on sand though so that's why I'm not suggesting it for higher. Its use is limited outside of one playstyle, but boy does it work so well on it. B sounds good imo.
->C+: Water Absorb is cool, and Swift Swim is kind of cool too, but this thing has a lot of competition from Swampert and Rhyperior, and other bulky SR users in general. It's not that bad but it's kind of outclassed. C+ is more appropriate here.
Just a few things that stood out to me.