Ok so despite my awful showing on ND UUbers Kickoff, i've been playing for a decent bit in order to get an opinion in the meta (at least what's mostly relevant on it) and since the discord was starting to make their personal VRs i decided to do one too but in forums so that it's not too dead (and i'm also only gonna focus on A mons and a few other things, if you wanna ask me anything then maybe on Discord)
For anyone who's played this tier for a decent bit probably knows how dominant this whale is, it basically warps the meta around it way more than not just Groudon, who lost it's best partner in Flutter Mane, but even Zekrom. I won't dwell much on it as i think everyone knows what this does, being the biggest wallbreaker in the tier with not just Specs and Scarf Water Spouts (the latter in particular) but also how Tera really enhances the mon, making Water resists obsolete vs Specs while Scarf sets are sometimes capable of beating even things like Zekrom, Arceus-Water or Tera Water Magearna if it manages to keep itself healthy. Calm Mind sets also deserve a good mention as bulky variants eat nearly everything in the tier while offensive has the freedom of freely using other moves with Specs brutal power.
So the thing about these two is that i don't really think they're neither close to Kyogre's level (at least Magearna, Zekrom is debatable) nor i think they're at the same level as the other mons in A+. Zekrom was already considered to be extremely good despite the fact that you not only had Groudon and Flutter Mane roaming around but also the presence of Kyurem-Black who's mostly considered superior in most cases, Zekrom had some qualities over it like being able to more easily beat Magearna and supporting it's team with an offensive DD rocks set but most of the time you wanted Kyurem-Black.
Now what we have right now fits Zekrom excellently as Kyurem-Black got banned, Flutter Mane got banned, Groudon got a significant drop in usage, Kyogre takes over and now everything revolves around Waters and Grasses which is what Zekrom likes the most as it's easily able to force things out and setup with nothing being able to comfortably take a +1 Dragonium Z, one of the main reasons you run Iron Defense on Ferrothorn and why Arceus-Grass has so many moveslot syndromes as it doesn't wanna lose to either steels or Zekrom. Obviously it's not perfect, despite it's good resistances, it's typing still leaves some significant weaknesses to Ice, Dragon, Fairy and Ground which are notable as most of what it likes to switch into is capable of luring it or not give it a free setup such as CM Arceus forms (mainly Grass, Electric and Flying), Kyogre, Magearna, etc.
On the other hand, Magearna is simply an extremely versatile mon that keeps nearly everything in check. It has an excellent defensive typing, it's a good Spikes setter, it's not passive as Fleur Cannon does good damage even uninvested, it keeps momentum with Volt Switch, it disrupts all of the setup mons with either Encore or Heart Swap, it's a fantastic Tera user defensively (mainly Water) and it's setup variants are filled with options (Iron Defense, Calm Mind, Shift Gear + infinite coverage). It's importance was even bigger back when Kyurem-Black, Flutter Mane and Screens were around as it not only dealt with everything in it but also abused Screens itself to quickly snowball out of control.
Right now it's still dealing with all sorts of threats around, going from most Arceus variants found in BO and HO, to Rain teams with Kyogre and Palafin, to PsySpam with Tapu Lele, M-Alakazam and Sneasler to so much more.
These two were more or less hurt due to both the Flutter Mane ban and the Light Clay ban but they still remain as really good options in the meta (with M-Blaziken still being banworthy for some people).
Compared to Kyogre, Groudon just feels more like an enabler to threats rather than the threat itself, while SD sets are decent they aren't as much of a game breaker as the Dragon Dancers or even CM Ogre due to moveslot syndromes as well as the typing not being that favorable right now (since you'll just get drowned by Kyogre) and the lack of investment doesn't allow it to matchup well into most Arceus forms. On the other hand, it's support variants are a lot more appreciated as they're able to take on most of the physical attackers and revenge killers around such as Kingambit, Urshifu, M-Metagross, M-Lucario, M-Mewtwo X and most importantly Zekrom. The sun greatly benefits M-Blaziken and Ogerpon-Hearthflame, massively boosting their damage output to stupid levels alongside setup, but it also enables the other Paradox mons like Raging Bolt, Walking Wake or Roaring Moon.
This is really straight forward, SD Speed Boost with a stab combination that barely goes resisted (only having Giratina, Toxapex and full hp Terapagos to take boosted attacks). However this mon also suffers from just not having the bulk or resistances to setup a Swords Dance which is more apparent when Light Clay got banned and made the issue even worse but even boosted it really disliked how common Kyogre + Palafin is.
(Flying)
This section is gonna be long and also starts to be the point of bias.
I really love Kingambit in this tier, it's just pulling the same tricks as it's done in ND OU and still excels even on a meta like this, the reason i don't put it on A+ is mainly due to being really slow on a meta where Kyogre rain is dominant, PsySpam squads with Sneasler being a pain for it and it's struggle vs bulky Arceus forms. Other than that it's one of the best revenge killers around, mainly matching up well into most setup threats as it's the main reason Dawn-Wings even has Tera Fighting, being bulky enough to take most hits from things like CM Arceus-Flying, Zekrom, M-Metagross and completely dominating Magearna.
I'll be honest i'm not a fan of this thing, it's certainly powerful and has a lot of options in it's disposal but it really wants all of them and it's speed is kind of middling. I don't have much to say on this as i still need to test it out, i've seen it's good trades but the moveslot syndromes and poor matchup into weather makes me wanna drop this a lot (i really don't think this is A worthy at all).
Now this is the complete opposite, Arceus-Flying is probably the best CM user out of all the Arceus forms around as the combination of Flying Judgement and Earth Power goes entirely unresisted outside of specifc cases like Balloon Gholdengo. It brings Hyper Offense a setup threat that's not only offensively great but also gives them a valuable defensive backbone from how bulky it is and it's excellent defensive trades in order to check M-Lucario, Groudon, Lando-I, Urshifu, Pheromosa, Sneasler, M-Mewtwo X, M-Metagross and so much more. Support sets struggle with being rocks weak but the resists are great, it still brings all the utility in the world (Taunt, Defog, Refresh, Wisp, Toxic, etc) while having good synergy with most steels.
Filling a similar role to Magearna, the main differences are it's access to Leech Seed, Knock Off and Toxic while being a Water resist that doesn't completely lose to Dragons. It still hates the amount of Fighters in the tier as, unlike Magearna, it's weak to them and the presence of Tera not making it the best Kyogre check around for the entire game but it's still a great pick overall.
I pretty much just used Scarf on this, it's a good revenge killer as it's faster than both base 90s and 95s while not lacking in the power department (compared to Pheromosa). I'm not really certain on other sets but it's basically a fast Kingambit in terms of dealing with Offense that also appreciates the bans.
Honorable Mentions:
This mon has good potential i just need to find a good build for it
So base is just completely outclassed by M-Zam while X is kind of a weird one, i need to experiment more with it
I'm a M-Blastoise hater, it's just really reliant on Terrain to get a safe setup and even then it doesn't really have too many chances to do so
(and a few more): I think stall has potential, mainly with Pex's TSpikes but i don't think either Lugia or M-Sableye are worth having (especially m-sab that thing does nothing)
So was this too long and completely filled with stuff nearly anyone knows? Yes and probably, i started to rant too much but i wanted to keep some activity around here, the meta is honestly fun despite having a few glaring issues (Zekrom, possibly Kyogre, PsySpam and apparently Moody but i don't agree with that one). See yall in probably my next post of ND RU's recent VR update!