I'll Share the teams I built then
https://pokepast.es/0ab1874adf798d96
Game 1 vs Solaros & Lunaris (I won)
Explanations:

Dudunsparce Abuses U-turns and Koffs with its rattled ability to progrssively become one of the fastest mons around, and Fire off STAB Calm Mind -boosted Boombursts, and Shadow ball gets SE Damage on Ghosts, remember that STAB NVE Boomburst does more damage than Neutral Sball, tho fishing for Sp.def drops is an option

Azelf here is a screen setter and not a stealth rock setter, because I care more about My Pokémo staying Alive enough to Set up and increase their damage output. this makes the team very vulnerable to sash spam but it's worth it.

Crawdunt runs DD over the standard SD, and Close Combat over Aqua jet, because I feel like catching KGB off-guard when Unboosted was worth weakening the MU into opposing speed control options. Adaptability Crabhammer also works wonders even at +1, so does Adap Knock off, it's got a good-ish MU into gholdengo since it outspeeds at +1 and Adap Koff Kills a large portion of all Dengos.

Polteageist is a wnderful mon in the right MU and even tho it didn't put in work at all vs Solaros, It's a goodish Wincon when the opposing dark is done for or in shadow ball range. In desperate situations it can Will-o the oppossing gambit, or, to Make the Stall MU better, you can run Substitute and even Twisted spoon if you're a twisted individual

This one particular zapdos is a physical sweeper, Smacking Bulky waters, Corvs and Rival Kanto birds with Supercell slam. Doesn't do great into LandoT since it's awfully weak to intimidate, but The damage Output is Worthy most of the time, remember that hawlucha only got 2 more base attack than our trusty Zap here.

Mega Lie is an absolute and literal NUKE, Spikes can be fit over Sing for consistency, tho Sing can flip bad MUs. the advantage of spikes is you can explode in the face of most removal by virtue of outspeeding them, severely weakening them and preventing them from removing the spikes.
https://pokepast.es/40390387f901802c
game 2 vs Solaros (I won)

Ninetales is the premiere Snow setter, here running the unusual hail so it can Override Yard's sun, and Mtar's too if you're willing to bet it isn't landing a big fat Stone edge on you (either missing or setting rocks) Hypnosis in-game saved the Melme MU, but encore is also an option. Freeze-dry as a mono attacking is only because Peli exists.

I built a snow team, I HAD to include the master chef of Ice types, Glastrier. here using a physdef set (Otherwise woulda clapped the lele) with Curse to become unkillable by many under snow and behind sub. Icicle spear also has a LOT o PP, so if you meet the classic 56 PP Dozo You can Kinda try to PP stall if you survive long enough.
Cetitan is a Bulky Snow abuser with OBSCENE Damage output thanks to Belly drum. Looking back, the Alolatales prolly shoulda been Icy Rock. Cetitan got the Ice-Ground offensive Combo that makes Kyu so threatening but with actual FIRE Damage output when Neutral without counting on RNG to freeze or Spdef drop the targets.

Arctozolt is By far the Best snow abuser in the tier, deadly-ass Boltbeam STAB Combination, the bolt here being bolt BEAK, the Electric Fishious rend. I chose Blizzard over Icicle crash So Lando T would NOT help Tusk or Rbolt or Pult take a hit. Sub is here for the Intim immunity, can be swapped for Hail for Longer weather and to Prevent opps from just switching 'round until Weather goes away.
This is the other Draga, the OG. I wanted a Fire resist that set snow, and not only does it do that, it has crzy utility in Haze flip turn and Tspikes. Generally satisfying as a substitute and Unexpected snow setter.

Homie is le fun dancer that I wanted to put trick room on for Glast but since it can't pivot I just went for a Cursed EV Spread Spinner, with a neat fast Taunt and Unexpected Focus blast to snipe Pults. Ice Body also helped a lot in snow when I tested it.
https://pokepast.es/85cae9a323ff0425
This is the team that sadly I did not get to bring. Make it Bo5 for the fun
Ineros I beg you
I wanted to peak Irony by Beating Solaros with Solrock. Not Lunatone because I am not a madman ready to cook up Meteor beam Rock pollish sets (or am I??) so I went for Double Dance Solrock. Brought it to Ssnl game tho, where it OHKO'd Full life Terap with Rock Z (it was on a crit yea dw) and Sniped Homie Ferrothorn, before Going down to Pex. Really satisfied bc HOMIE IT WAS SOLROCK

I wanted a Pivot that did very well into KGB and Yard and I saw K9 got Morning sun and Tport, I couldn't Refuse, you see, very simple, doing its job like a dog woulda done.
Shell smash sweeper that clicks Big damage button. Doesn't Explode if a Prio move is clicked, so that's nice, and it is a grass type that smacks the birds, so, nice!

Went for Will-o Mlade as a Lando and Mlop Repulsive, Did not get to see all the potential in this set tho, so that's not as nice.

(F)
Alrigh alright Homies hear me out: SR T1, Attract T2, Pain split Chain or Pjab to fish for the nasty Poison Chance. Obviously explodes into dengo but It's super fun and Ghold is only #4 usage.

ngl This Breloom set is Hella messed up. can leech stall for sure but it's passive as hell into ghosts. I kinda lessed up on this one yea gotta admit it.
I don't have a Lot to say 'bout the last team Since I didn't bring it but here were the teams