If you saw me accidentally post this before I was done, no you didn't and also since when can you just post by hitting a button on your keyboard???
1>6>8>3>4>5>2
Now to give my thoughts on the teams:
2)
Eruptdon :groudon-primal: :calyrex-ice: :walking-wake: :flutter-mane: :charizard-mega-y: :zygarde: by Yesman
I'm afraid weather teams don't really work in a tier where a Pokemon that resets the weather is on basically every team.
5)
Hone Claws PDon BO :groudon-primal: :alomomola: :zygarde: :ho-oh: :arceus-fairy: :marshadow: by Planet
I went back and forth on this team a lot. Originally, I liked it a lot. Alomomola and Zygarde is quite unusual, but lots of longevity combined with a pivot-supported Marshadow sounds like a recipe for success. And then, I realized something. Stealth Rock is not on Primal Groudon, but rather on an Arceus Fairy without Taunt. This lets Ho-Oh remove hazards for absolutely free. And as a team focused on longevity, you really want hazard chip to wear down the opponent. And then I realized something else. While yes, a lacking hazard game is unfortunate, you know what also does a great job of wearing down the opponent? Marshadow. Ho-Oh may still be annoying, but you can abuse it to let in Marshadow, either by reading the switch, reading the Defog, or just playing it safe with an Alomomola pivot. This is a powerful thing to have, and the threat of it alone could discourage Ho-Oh coming in or clearing hazards. This was enough to have me deliberate on its placement for a while. But then, some realizations hit. Even aside from how these openings to send in Marshadow aren't completely reliable or safe, there are also some other big flaws this team has. Eternatus is a bit scary, but the big one is Zacian. Having such a frail Primal Groudon and Marshadow as your best speed control on a team with Alomomola makes Zacian a very big problem, and the second I realized this I unfortunately could not put it any higher.
4)
Melmetal TR :groudon-primal: :hatterene: :melmetal: :cresselia: :kyogre-primal: :arceus: by EbonyGod
Ew, Trick Room. That's it, that's my entire reasoning. I think Trick Room is too matchup fishy to be that good, and also I don't know enough about Trick Room teams to gauge how good of a Trick Room teams this is unfortunately.
3)
3A RP PDon Offense :groudon-primal: :ho-oh: :zygarde: :arceus-fairy: :marshadow: :necrozma-ultra: by Jumpheart
At first I was moving this between top 2 and 3, even considering putting it at first. And then I
read Jumpheart's comments about the team realized that this team struggles fairly hard into Ho-Oh. That, and a scary matchup against Dragon Dance Arceus Ground, and what I am just now realizing looks like a pretty poor webs matchup, is what has this team this low.
8)
Overheat SD Primal Groudon Offense :groudon-primal: :landorus-therian: :zacian-crowned: :eternatus: :arceus: :yveltal: by Sami
This was originally way lower, but I eventually began to realize I was looking at this team all wrong. The problem I originally had was that this team needed Landorus Therian to somehow check Zacian and set Stealth Rock at the same time. I've come to realize that this isn't the case at all. This team is generally offensively threatening enough that Zacian has a tough time setting up, and that combined with Scarf Yveltal provides a good enough matchup against the dog even without Landorus. I still think this team is a bit awkward; Landorus doesn't really seem to consistently provide a lot to this team other than set rocks and die, and the pressure against hazard removal seems a bit shoddy, but it works well enough I think.
6)
Ditto SD Spikes PDon Offense :groudon-primal: :ditto: :giratina-origin: :zacian-crowned: :necrozma-ultra: :eternatus: by Player350
The webs matchup seems not great, and some stuff like Ultra Necrozma, Marshadow, and maybe even Tera Fairy Zygarde seem scary, but overall there doesn't seem to be a huge flaw that holds it back. I don't think there's a ton to say about this team.
1)
SD Rocks PDon + Fez BO :groudon-primal: :deoxys-attack: :fezandipiti: :marshadow: :yveltal: :ho-oh: by TheShowdownHero
I have a few notes. The Primal Kyogre matchup seems scary, but not terrible considering that you exert a lot of offensive pressure and your Primal Groudon is the more specially defensive spread and also packs Swords Dance to meaningfully punish it. Marshadow is also something to consider but not something that farms your team. The big thing is that I'm not a fan of this Yveltal moveset. It seems to be trying to be an end game cleaner here, but I think it would be more effective at that with Foul Play over Oblivion Wing. Most people would probably also tell you to go Knock Off over Dark Pulse, but I actually think Dark Pulse might be the better option here, as you don't really seem to struggle with the stuff you usually want Knock Off for. But even with all the stuff you have for Zacian, I definitely still think that since you're running 68+ defense or higher on Primal Groudon that, while you can function without it, you'd still want Foul Play on Scarf Yveltal. That being said, I think that since this team doesn't have any huge weaknesses that, while it is close, this team deserves to be at the top here just due to the sheer strength of what you're working with. Deoxys Attack and Choice Band Marshadow, both supported by a pivot, with rocks being set by Utility Swords Dance Primal Groudon all makes for a very scary team to go up against, and even if no Foul Play makes it significantly worse at this, Tera Dark Scarf Yveltal can still put in serious work as an end game cleaner.