hello!!!!!!
audino-mega: a- -> a+
this nom might seem a bit aggressive but having played a good amount with this pokemon recently, i think it is a wonderful wincon as its wishtect set is capable of winning matches through brute force by walling the opponent's remaining pokemon late game (a number of matches i've played using audino involved it winning late game by just clicking wish, protect, and toxic). it doesn't even require a massive amount of support to achieve this, given that it is capable of walling such a large number of prominent threats to begin with. looking at a- tier and above, garbodor and vileplume are the only pokemon that can be considered consistently threatening to audino, and xatu is fairly effectively at forcing audino out, but not being able to do too much in return. looking at b- tier and above, klinklang, golbat, skuntank, and toxicroak can consistently pressure audino, so really the number of pokemon that threaten audino aren't too plentiful so audino doesn't need a massive amount of support to succeed. audino of course can still function solidly early/midgame with access to wish and regen as it can still check some major threats like scarf delphox, specs whimsicott, and vikavolt, which lets it use wish effectively and increase the longevity of some of its teammates.
audino is also effective at running other sets as well such as offensive healing wish, which is a useful lure for some pokemon like vileplume, steelix, seismitoad, and klinklang, along with resttalk cm which is also a decent wincon, but i haven't experimented with these sets too much, and wishtect is still it's best set anyways, but it does show the solid flexibility the pokemon has.
i think an aggressive rise from a- to a+ is warranted given audino's abilities are a massive boon for balance in the tier as a whole, given its ability to support teammates and also win late game, and i truly believe that as audino gets more usage, it will cause the meta to solidly shift and allow for balance to be a more effective playstyle in the tier
magmortar: b- -> b+
while i did mention that i expect balance to improve in the tier as audino gets more attention, magmortar does provide for a solid thorn against bulkier teams in general. recently it has been gaining traction with its z-focus blast set, which allows it to threaten a lot of the tiers common rockers (piloswine and miltank in particular are ohko'd) and ohko stuff like guzzlord. access to thunderbolt is wonderful too as it allows to dent slowbro and vaporeon. fire-type defensively is useful right now since it allows it to check whimsicott and vanilluxe as well. its rock weakness and poor physical bulk does hold it back, but i have enjoyed using it recently with its solid wallbreaking capabilities
braviary: b+ -> a-
another pokemon i've enjoyed using recently, sub bulk up is truly a wonderful set but it really isn't getting the attention it deserves. the rise in popularity of seismitoad helps braviary quite a bit, since it is capable of using it as setup fodder (scald doesn't break substitute) and putting dents into opposing teams even early game, especially considering seismitoad teams may not pack flying resists outside of klinklang. it can also take advantage of xatu which also has been gaining more popularity recently, since xatu can't break braviary substitutes with psychic. its solid bulk in general also allows it to check some stuff like whimsicott and delphox when rocks are not up. overall it can serve as a nice wincon against bulkier teams, especially once opposing steelix and rhydon are removed.
vikavolt: a+ -> a/a-
the hype for vikavolt has been dying down recently, as more offensive teams are becoming more popular as of late, and as balance is become more revolved around audino, which serves as a solid check for vikavolt.
vikavolt really isn't fast enough to be consistently threatening against offensive teams; delphox becoming more popular too doesn't help its case much either.
rhydon: a -> b+/b
as someone known for using rhydon consistently in the earlier stages of the meta, i really find it hard to justify using rhydon over other stealth rock users, especially when rockers like seismitoad and piloswine are becoming more common, both of which rhydon struggles against. when comparing seismitoad and rhydon; while both may be weak to whimsicott and vanilluxe, seismitoad can more easily slot protect into its moves than rhydon allowing it to scout. seismitoad also doesn't really fear scald from slowbro and can toxic it reducing its effectiveness for the remainder of the match. rhydon is also fodder for klinklang which has been solidly rising in popularity, and teams using rhydon will generally find themselves weaker to klinklang as compared to teams with seismitoad since seismitoad is one of more solid checks to klinklang.
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just some of the main things i wanted to talk about; some minior things that should probably be considered are aromatisse to c+, togedemaru to c/c-, lanturn to c-/ur