Rises:
A+ ->
S: Talonflame has been on the rise even more lately as a premier status spreader and speed control. Oftentimes it does work even in bad matchups, spreading status and being the main revenge killer to most breakers in the tier.
A ->
A+: Guzzlord has seen a rise, as with defense investment it is one of the bulkiest mons in the tier, and it comes with a potent offensive potential as well as Knock Off to always make progress against the opposing side.
A ->
A+: Xatu rises in a tier with a low amount of hazard removal, and with Talonflame as one of the main competitiors its not hard to see why. It keeps them off against every steel type, as well as against Diancie which it can stall out of Diamond Storms.
A- ->
A: Goodra has the coverage to make any matchup work, and the speed tier to abuse fat without any worry. With non-choiced sets, it can lure common checks as well, such as Vaporeon and Diancie with its mixed set.
A- ->
A: Mudsdale has become a good glue for teams, its typing and bulk making it a good check to Copperajah and many breakers, and it can be a big problem for many teams by spreading Toxic to its main checks. Mudsdale especially shines with Wish support, allowing it to come back and shut down entire strategies.
B+ ->
A-: Mantine has become a premier piece of removal, competing primarily with Xatu and the cursed Defog Talonflame, while offering a ton of compression that neither offer. Although it's also a Flying-type, it suffers much less from Knock Off compared to the other two Pokemon. It also has a deadly STAB combination as well as a ton of natural SpDef and Water Absorb, making it very useful on teams without another Water-type.
B ->
B+: Passimian is one of the best scarfers in the tier, with a speed tier faster than the unboosted metagame which enables it to revenge kill Talonflame with Rock Slide while offering a lot of pressure with U-Turn and a really strong Close Combat.
B ->
B+: Tyrantrum has also been rising as a scarfer, offering a strong Head Smash that does formidable damage even with a Choice Scarf. Tyrantrum's other sets are also very scary, particularly because Ground-types such as Silvally-Ground are rising which don't check them nearly as well.
Ground C+ ->
A-: Speaking of Silvally-Ground, this is the hottest new addition to the metagame, with most people using it to counteract the relatively slow nature of teams by offering a much faster Volt-immune. This Pokemon is faster than non-scarf Rotom-Mow, which allows it to pressure it with U-Turn and pivot into other resists. Not only does it do this, it also has the potential to sweep many teams with its strong EdgeQuake coverage, destroying teams that rely on a Flying-type as their Ground resist.
C+ ->
B-: There isn't much more to be said on Comfey, but SubSeed CM sets have become even more common as of late, and the VR council decided that this added exposure deserved a bump.
C+ ->
B-: Scrafty is a potent threat against any team that doesn't carry a Fairy-type, allowing it to Bulk Up and threaten a sweep against any team after they're removed. Even when Fairy-types are in the match, Knock Off enables it to make progress against them and to weaken them for other teammates.
C ->
C+: Duraludon is a potent breaker with a speed tier that is well above average. Sitting at base 85, it is a versatile breaker that can be a Scarfer or a breaker, its strong coverage alongside its great STAB combination carrying it in most non-Copperajah matchups.
UR ->
C: Inteleon has a great speed tier, sitting above Pokemon such as Starmie and Salazzle, while spamming Water-type moves against any team without Water Absorb. Even when a team is carrying a Water Absorb Pokemon, Inteleon can use U-Turn and pivot into Pokemon which can exploit them.
UR ->
C: Indeedee-F is a potent breaker that can use coverage such as Dazzling Gleam to force past Dark-types, as well as the sheer power of its 156 Base Power STAB move to whittle its checks.
UR ->
C: Togedemaru has seen a lot of usage in SCL, offering a defensive presence against Rotom-Mow while also providing Wish to other Pokemon after a U-Turn.
UR ->
C: Sneasel is blessed with a really strong STAB combination, and with the rise of Wide Lens Triple Axel and the usage of Xatu, it has become a more potent breaker due to an accurate 120 Base Power STAB.
Drops:
S ->
S-: Rotom-Mow is still the best Scarfer in the tier, but the checks to it are very clear and it doesn't have the same power to break teams by itself as it used to. It relies a lot more on the power of its teammates to support it than its own power. The rise of Silvally-Ground and Togedemaru have also made it a bit worse.
A+ ->
A: Salazzle struggles with the presence of many clerics, as well as bulky Water-types that are used on most bulky teams that Salazzle is used to shredding. The defensive Dragon-types also have a very large presence in the tier, and they match up very well into Salazzle.
A+ ->
A: Sylveon has been debatably A for a while, often being quite easy to take advantage of in the same vein as Vaporeon. It offers a different set of advantages over Vaporeon, but when compared to Diancie, its very clearly the inferior Fairy-type.
A ->
A-: Exploud is a potent breaker that has seen very little use, and doesn't offer the same speed tier or defensive utility as some other breakers. It's also just much less splashable as a breaker than many others, pigeonholing it into very similar cores which can be countered rather easily.
A- ->
B+: Decidueye has seen negative usage, and the rise of Dark-types like Guzzlord and Drapion really hurt its viability overall. There isn't much more to comment on Decidueye, as very few of us have seen it in action often.
A- ->
B+: Tauros is one of the fastest breakers in the tier, but it struggles due to the viability of the breakers that are faster than it and Talonflame, as well as the very high usage of Body Press Bronzong.
B+ ->
B: Spikes just aren't as good, with Xatu usage as high as it is and the usage of Fighting-types as a whole not being as big as it used to be when Sirfetch'd was more scary to people building.
B+ ->
B: Glastrier hasn't seen any results, and its speed tier allows it to be crept by even defensive threats such as Vaporeon, making it hard to set up and break with.
B+ ->
B: Ninjask doesn't have the proper breaking power without Acrobatics, and the Acrobatics set takes so much effort to build around that you're better off using something else if you need the extra power. Dual Wingbeat Ninjask is still solid, but has a lot of common resistances (namely Diancie) that make it hard to use.
B ->
B-: Kingdra hasn't seen much usage, and it competes heavily with other Dragon- and Water-type breakers for a slot on the team, without offering the same ease of use and versatility as they do.
B ->
C+: The drop in Quagsire's VR rating reflects the lack of usage of stall overall, as well as the failure of it to live up to the hype of being a splashable answer to many of the tier's threats.
Ghost B ->
C+: Silvally-Ghost is hard to justify over the much more splashable Silvally-Ground, and it doesn't have the immediate breaking power to be potent versus teams that have a Ghost resist such as the ever-rising Guzzlord.
B- ->
C: Machamp just isn't Sirfetch'd, and Guts plus the lower speed tier makes it much harder to use, always getting chipped down and crept by random Pokemon such as Mantine that don't outspeed Sirfetch'd.
C ->
UR: Everyone just saw Kushalos vs. OnArceus where Stunfisk-Galar killed a -1 Absol from 88%, and we had to nom Stunfisk-Galar or drop Absol. Everyone knew we had to spite Pokeslice, so this is the verdict. (Absol is also just really really frail and pretty slow, making it hard to use effectively).
C ->
UR: Lanturn just doesn't do its job as compression very well, especially with the rising usage of Silvally-Ground and Mantine doing some of its roles much better.
C ->
UR: Steel types exist.