wanted to dedicate an entire post just to bitch about groundceus but MDB and Chloe made some well reasoned nominations so i figured that I should reply to those so that the post doesnt sound too mean
While I agree defensive sets are not where we thought they would be at the beginning of the gen, having played around with offensive luna I have to assume you're playing some whack players. No darkceus and ttar being used rather sparingly means specs luna can p much claim a kill every single game, like sure you can send in yve but one wrong predict and its dead, can't even be trapped by gar so its very hard to revenge, and still works as an option to dynamax. It deserves to stay in A.
disagree with this. Specs lunala does fine vs balance (I think you still cant break through Ho-Oh + Zygarde/Supportceus cores though) but it really struggles to perform well vs HO teams because of its low speed tier, and without HDB or sufficient bulk you cant rlly take hits from Zacian/Ray/Don/other threats. If youre locked into Ice beam/Fmiss you might be a set up fodder for some of the common mons on HO. Again I dont mean to say its bad, I really like using it too but everything in A rank is just much better :[. also id like to point out that ttar is good and fairly common. Just bcz its not a thing on ladder doesnt mean its bad lol.
I'm sorry, this isn't a reason for a rank. Checking "the best offensive mon" is smth a lot of pokemon did last gen and never got ranked. Xern isn't even being used in a fourth of higher end ladder teams, and pogre is much lower than that. It requires such a crazy amount of support to use that it ends up not even being remotely worth it. Not to mention it's the definition of passive as fuck. Like ik Chloe is on council but you can't just arbitrarily decide to rank dogshit like this. Checking like, three mons and losing to every other top tier pokemon is not viable in the least.

to UR.
Theres just so many things wrong with this part. Firstly I feel like the comparision to gen7 is really unfair. Gen7 AG and Gen8 National dex AG are entirely different metas. This isnt the main point but I'll still go over it anyway. The best offensive mon (I'm gonna assume mega rayquaza) was walled/soft checked by lots of viable things which could be used on any team, like pretty much every supportceus, zygarde, skarmory, tyranitar, non scarf/dd sets got revenged by gengar or marsh and almost every scarfer. Also got revenge killed by plethora of other offensive threats like Marshadow, Unecro, fast supportceus and Ekiller because of which it wasnt extremely hard to beat it and you could totally just get away with not running a consistent check (not like it had consistent checks anyway, but the point is that the 2 pokemon core which u ran to beat rayquaza were usually the staple mons) unless your team was extremely passive. Im pretty sure that skarph, zen and most other top players ran just marsh/gar paired with a supportceus and were never troubled too much by it. This is why the need to rank a mediocre ray check was never required (they ranked solrock at one point but it got unranked right after) because the niche of checking the best offensive threat wasnt huge enough because the staple mons in the meta already kinda did it. This gen theres *really limited* checks to the best offensive mon (aka Xern). Theres Dusk mane which is the most viable option, Amoonguss, Chansey, Magnemite anddd thats about it (not gonna include Ditto because it isnt really reliable as it has to win the speed tie if it cant stall xern out of dynamax turns. but I really hope im not missing some other important mon). And you really just cannot make a team without one of these. So imo checking the biggest offensive threat in the meta is a much more valuable quality this gen since really few mons do it and actually do other things as well.
Back to the nom. I really dont think that youve actually used Amoonguss. Yes its a bit passive but it definitely does not give free switchins to anything relevant and the fact that it doesnt get trapped by gar is also really cool. The set it runs is Grass Knot / Foul Play / Sludge Bomb / Clear Smog with Assault Vest, max max hp spdef. You can fish for poisons vs Pdon, Yveltal and Ho-Oh switch ins, get decent chip with Foul Play vs Zacian, Rayquaza, Lunala and Gar and Grass knot does solid damage to Pogre, Waterceus and Groundceus. I didnt wanna say all this in my earlier post because the amoonguss mention was just a little example but I figured that i should justify what I said since you brought it up. Chloe explained this better so you might wanna give that a read ^^. Speaking of which, all the council members agreed to rank this when the VR was initially made. And I think its pretty obvious that nothing gets on VR unless majority of the council members agree to have it there.
yes i did oppose this nom yesterday in council chat but i realised later that i used this and got really good results. infact my first good gen8 team ever was an amoonguss stall.
Anyway, I know I touched on naga in my first post, but after testing it a bit, I am honestly baffled on why it's even ranked. As a dynamax abuser? Why would I ever use this over kartana, yveltal, xern, thundy? It's so stupidly prediction reliant because of it's STABs that I can't fathom why you would ever choose this. Would you use it for coverage options? Oh wait, we have something called eternatus which completely outclasses it. As a Z move Abuser? Zacian being so common means it struggles to get even one kill. Its bulk is so pitifully weak and struggles to find any real set up opportunities. Its easily revenged by ditto and just seems so garbage. You're not ever using this on a serious team.

B- to UR
I also played around 20 ~ 30 games with thundy yesterday and won all of them. If this isn't ranked then smth is wrong with y'all lol, shit is insanely powerful.
honestly I couldnt care less if naganadel is ranked or not but youre being a bit harsh on it. Its definitely not as useless as you think it is and can still murder unprepared balances/HOs. but yea i seriously wouldnt mind if this got unranked.
I didnt talk about the Thundurus-T nom because I wrote up everything in my previous post other than the 'S rank' part before you made the nomination post and I forgot to add in the thundurs later. I agree with everything you said in the post. D sounds too unreasonable but C+ (if the C ranks dont merge) or B- sounds fair >:)

UR to D
You could use a standard screen setter, but the ability to offensively pressure whole entire opposing teams while also setting up screens is something people should be paying attention to. I would never rank this any higher than D but in my time using it, I've been really impressed by how much it dismantles opposing teams early and how many people struggle and don't know what to do about it. The replays explain this better than I possibly could.
Content warning: I play like trash.
https://replay.pokemonshowdown.com/gen8nationaldexag-1048318607
https://replay.pokemonshowdown.com/gen8nationaldexag-1048322030
https://replay.pokemonshowdown.com/gen8nationaldexag-1048323567

UR to D
Melmetal is really interesting to me. It has more physical bulk than Giratina, a super high attack stat, and it has a really nice signature in Double Iron Bash. I've been using this set.
Melmetal @ Chesto Berry
Ability: Iron Fist
EVs: 252 HP / 252 Atk / 4 Def
Adamant Nature
- Double Iron Bash
- Earthquake
- Rock Slide
- Rest
It's great support on balance builds. I can use it to remove Smeargle, Vivillon, Deoxys-S in one hit; it soft checks Necrozma-DM, Zacian-C and other potent attackers. It can also be used in the late game to establish a defensive wall that really has trouble with near nothing. There's other possibilities with Melmetal but this is the set I've liked the most so far. I want people to try it more than anything as I feel like a lot of people have just glanced over it without giving it a chance, but I truly believe it is viable.
https://replay.pokemonshowdown.com/gen8nationaldexag-1048276414 (didn't do much here but i thought i'd include it regardless)

D to C-
I believe regular offensive Groudon is consistenly underrated. I was running Choice Scarf for a while to answer Zacian-C but I've been seeing Rock Polish Dynamax have consistency as well. Great offensive typing, good coverage and solid bulk, Groudon has a lot going for it. There's also the lead set which I still insist is viable but that's just not as potent at the moment as offensive sets.
Thanks for reading my post, sorry for boring you out of your mind.
I'm gonna be entirely honest, I havent built with anything on this list except lapras so thats the only one im gonna comment on.
Lapras is surprisingly a decent pick. Its really annoying to face unless you have a pdon, you cant status it with toxic, cant beat it with Ho-Oh, nothing OHKOs it when its gmaxed and isnt too passive because it does ok damage to most things. The only problem with this is that you have to make sure that nothing on your team relies on Dynamax to be good (I'm looking at you, Yveltal) so the teambuilding part can be a bit tricky. Other than that its fine and good enough to be ranked imo.
I've actually seen Groudon in action but I dont know if a raise is necessary especially if we merge the C ranks. I'm really iffy on melmetal though. Its an anti cheese mon but idk if thats good enough to give it a spot on VR. I'd like to see some replays/a team around these before giving my views on them but atm its a no. Speaking of anti cheese I think that Dragpult might be a slightly better version of this. It gets fast screens. dragon darts and U-Turn. but again im not sure, I havent used it and never will because I'm extra uncreative. just my 2 cents though.

(Ground) A to A-/B+
Okay, no. Support Arceus-Ground is a very very good Pokemon in the current metagame. It checks so many common threats, has good utility options, pressures Pokemon that are seeing even more usage nowadays. Then there's sleeping on Swords Dance which is so good while Dynamaxed, there's the Calm Mind sets which can run Max coverage now to bop Ho-Oh. Arceus-Ground is really really good and I implore whoever made this nomination to try using it more. I believe this nomination is misinformed to say the least.
I'd normally not reply to this because youre just giving your own opinion but since its kinda aimed at me I figured that I should.
firstly I'm really not sleeping or underrating the offensive sets in any way,
my nomination only criticized the support set and towards the end I did admit that the CM and SD sets are still as good as they were before and its just that the newer threats are straight up better (I
really hope we all agree that Geo Xern, Yveltal and Eternatus are better than Special Groundceus and Physical is worse than Zacian, Zygarde and maybe Rayquaza). Regardless of how good the offensive sets are, its pretty evident in the post that the main reason I want Groundceus to drop is just because of its support set. I did say that I havent used the SD/CM sets too much and I think its really obvious that I wouldve nommed it to something lower than A-/B+ if I actually thought that the offensive sets are garbage as well. Why should something with bad offensive sets AND bad defensive set stay in A-? My apologies if I didnt make it too clear that the main focus of the nomination was the support set (had over 1000 words) and not the offensive sets (2 sets combined 40ish words) but I thought that was too self explanatory.
Now onto the support set, I'm REALLY not sure which 'common threats' groundceus is checking. I talked about every relevant threat in my post but I'll still give a detailed explaination of why it sucks vs every common threat again.
I'm also gonna go ahead and assume that the 'common threats' are those above A- ranks. Checking Rockceus, Steelceus and Fireceus really doesnt make it very very good.
And I'll also assume that the Groundceus set is
Arceus-Ground @ Earth Plate
Ability: Multitype
EVs: 252 HP / 240 Def / 16 Spe
Bold Nature
IVs: 0 Atk
- Judgment
- Ice Beam / Toxic
- Recover
- Defog / Stealth Rock / Toxic
Run Wisp over Toxic (or Ice Beam) and congrats youre now the *biggest* liability in Pokemon history vs any sort Ho-Oh balance (most common playstyle atm)! and made yourself more vulnerable to Yveltal, Xerneas, Lunala and Supportceus!!! (Supportceus Toxics you and you... Wisp them. This is the worst trade ever).
lets just also assume that these first few are 1v1s, which are actually the best possible scenarios for Groundceus because it cant switch into any of the S rank mons.
also id assume that you guys are smart enough to know this but keep in mind that in practice its gonna be even harder for groundy to beat any of the following mons. You guys are using it to check so many common threats and as a pivot to passive stuff, youre bound to get chipped or statused. before someone drops the 'this wall of calcs is irrelevant', its actually the fairest way to determine if it checks something or not, and is favouring groundceus if anything because in practice the groundceus is almost never going to be entirely healthy.

+1 252+ Atk Zacian-Crowned Behemoth Blade (100 BP) vs. 252 HP / 240+ Def Arceus-Ground: 211-249 (47.5 - 56%) -- 81.6% chance to 2HKO
0 SpA Earth Plate Arceus-Ground Judgment vs. 0 HP / 0 SpD Zacian-Crowned: 270-318 (83 - 97.8%) -- guaranteed 2HKO
groundceus fails to beat Zacian in a 1v1 scenario 80% of the time. Its also pretty obvious that you also cant reliably switch into it.

0 SpA Earth Plate Arceus-Ground Judgment vs. 0 HP / 0 SpD Xerneas: 153-181 (38.9 - 46%) -- guaranteed 3HKO
doesnt do good damage, you can just toxic but thats rlly not helping. you know what xern does after this;;

0 SpA Arceus-Ground Ice Beam vs. 0 HP / 0 SpD Yveltal: 154-182 (39.1 - 46.3%) -- guaranteed 3HKO
252+ SpA Life Orb Dark Aura Yveltal Dark Pulse vs. 252 HP / 0 SpD Arceus-Ground: 214-253 (48.1 - 56.9%) -- 91% chance to 2HKO
252+ SpA Life Orb Yveltal Oblivion Wing vs. 252 HP / 0 SpD Arceus-Ground: 161-191 (36.2 - 43%) -- guaranteed 3HKO
Yveltal can just not dynamax and still beat Groundceus. You cant even toxic because yveltal taunts you.

0 SpA Arceus-Ground Ice Beam vs. 252 HP / 52 SpD Ho-Oh: 51-60 (12.2 - 14.4%) -- possibly the worst move ever
yeah nvm
defensive
0 SpA Earth Plate Arceus-Ground Judgment vs. 252 HP / 252+ SpD Prism Armor Necrozma-Dusk-Mane: 153-181 (38.4 - 45.4%) -- guaranteed 3HKO after Leftovers recovery
NDM Toxics you and spams Morning Sun
offensive
its really obvious that no one is gonna set up with DM vs a healthy groundceus .-. and Groundceus cannot beat DM after it hits +1
both not dynamaxed
+1 252 Atk Necrozma-Dusk-Mane Sunsteel Strike vs. 252 HP / 240+ Def Arceus-Ground: 180-213 (40.5 - 47.9%) -- guaranteed 3HKO
0 SpA Earth Plate Arceus-Ground Judgment vs. 0 HP / 4 SpD Prism Armor Necrozma-Dusk-Mane: 211-249 (62.9 - 74.3%) -- guaranteed 2HKO
weakness policy is activated and its over for groundceus
both dynamaxed
turn 1: necrozma dusk mane max quakes, arceus ground max quakes (ndm gets +1 spdef boost and +2 attack boost)
+1 252 Atk Necrozma-Dusk-Mane Earthquake vs. 252 HP / 240+ Def Arceus-Ground: 157-185 (22.9 - 27%) -- 48.1% chance to 4HKO
0 SpA Earth Plate Arceus-Ground Judgment vs. +1 0 HP / 4 SpD Prism Armor Necrozma-Dusk-Mane: 181-216 (34.2 - 40.8%) -- guaranteed 3HKO
turn 2: ndm max quakes again, arceus ground max quakes again (ndm gets to +2 spdef boost)
+3 252 Atk Necrozma-Dusk-Mane Earthquake vs. 252 HP / 240+ Def Arceus-Ground: 260-307 (38 - 44.8%) -- guaranteed 3HKO
0 SpA Earth Plate Arceus-Ground Judgment vs. +2 0 HP / 4 SpD Prism Armor Necrozma-Dusk-Mane: 136-162 (25.7 - 30.6%) -- guaranteed 4HKO
turn 3: max guard or max steelpike, doesnt matter at this point
+3 252 Atk Necrozma-Dusk-Mane Sunsteel Strike vs. 252 HP / 240+ Def Arceus-Ground: 390-460 (57 - 67.2%) -- guaranteed 2HKO

(nothing switches into mega rayquaza so lets assume a 1v1 scenario again)
252+ Atk Life Orb Rayquaza-Mega Dragon Ascent vs. 252 HP / 240+ Def Arceus-Ground: 230-270 (51.8 - 60.8%) -- guaranteed 2HKO
0 SpA Arceus-Ground Ice Beam vs. -1 0 HP / 0 SpD Rayquaza-Mega in Strong Winds: 226-268 (64.3 - 76.3%) -- guaranteed 2HKO
(note that if its draco mega ray you really have no chance)
scarf is walled by toooo many things anyway so ill not talk about that

finally something it actually beats!! but im just gonna ignore the fact that don can toxic you and then switch out, rest of the mons on the team pressure tf out of you which gives you a hard time (keep this in mind, ill use this in the zygarde and gar part). And Overheat sets have good chance at getting rid of groundceus. 0 SpA Groudon-Primal Overheat vs. 252 HP / 0 SpD Arceus-Ground in Harsh Sunshine: 255-301 (57.4 - 67.7%) -- guaranteed 2HKO
anyway id argue that zygarde is a far better don check. speaking of which,

gonna leave this one out because none of us know how the zygarde-complete dynamax tech is supposed to work. if it is supposed to regain HP i really dont think that groundy can beat it. but otherwise it does so theres that. also keep in mind that since youre using groundceus to check 'so many common threats' and is 'used as a pivot into various things' theres a high chance that something might toxic you (don hooh or dm mostly). everyone knows what ddance zygarde does to a toxicd mon lol.

+1 252+ Atk Necrozma-Ultra Light That Burns The Sky vs. 252 HP / 240+ Def Arceus-Ground: 415-490 (93.4 - 110.3%) -- 62.5% chance to OHKO
0 SpA Earth Plate Arceus-Ground Judgment vs. 0 HP / 4 SpD Necrozma-Ultra: 154-183 (45.9 - 54.6%) -- 55.9% chance to 2HKO

also loses to groundceus but keep in mind that you cant switch into it

tbf everything (not exaggerating, literally everything) after A- beat this 1v1. but realise that groundceus has to recover/defog/toxic plenty of times when youre playing vs teams built around gar so you theres a big chance that u get trapped.

im tired of copy pasting calcs. but specs does too much to groundy and +1 z most definitely ohkos it.

do i really have to?
conclusion:
List of mons which beat support Groundceus in 1v1 scenarios *every* time:
again, please keep in mind that the 1v1 scenario is actually the most ideal scenario for arceus-ground and perhaps the worst for the offensive threat since the mon hasnt actually set up yet. its also fair to say that groundceus is a
set up fodder for these mons
List of mons support Groundceus cant switch into, or cant beat after they set up:
(cant switch into)
(cant beat after set up)
List of mons support Groundceus actually beats

and as I said earlier, these 3 have their own ways to get rid of it
even if they cant, very evidently this is
not checking 'so many common threats' in the meta. its more of a liability than help.
As I said earlier, Ho-Oh/Lunala/Giratina are just much better defoggers. And defogging isnt a big issue anyway unless theres a Toxic Spikes or Spikes user. In that case Ho-Oh and Lunala are better options because they dont take entry hazard damage and dont chip themself to a point that u can basically switch into nothing (groundceus already cant switch into anything so this isnt helping loool).
Stealth Rock users without Toxic are extremely mediocre since you give free defogs to every defogger. Arceus cant afford to run Toxic + Rocks since it has no real way to damage rayquaza or zygarde then. Plus youre getting walled by fog Ho-Oh anyway. Don is a much better rocker. So is Toxic Rocks Waterceus since it can actually do something to ho-oh
and no im really not the one whos 'misinformed'
im pretty exhausted so ill end it here
any questions lmk
Groundceus to A- incase you guys forgot lol