Week 1 (Note: In Week 1 Arena Trap was legal):
https://replay.pokemonshowdown.com/smogtours-gen8ou-488048
prajpran's Dracovish broke through Ferrothorn with ease in the early game, taking heavy chip to do so. Bugzinator does sterling work preventing praj Wishpassing Vish back into the game, but Bugzinator's Hippowdon gives Vish two free switch-ins with Whirlwind, which means two more dead mons. Bugzinator resigned on turn 171, with his lone surviving offensive presence in Rotom-H out of PP.
https://replay.pokemonshowdown.com/gen8ou-1090952994-mx5tmx1e6ts3w22thgidlq10ehyzj81pw
Mix's Ferropex core successfully holds Vish at bay, aided by his Aegislash pushing Amphareixon to breaking point and forcing him to go hard Vish to try and stop it. One of only two examples among all of these replays where Vish's defensive counterplay actually works.
Weeks 2+3:
https://replay.pokemonshowdown.com/smogtours-gen8ou-488837
Lax's Vish blows right past Tace's Pex, with the rest of Lax's team chipping in to set up a Vish clean.
https://replay.pokemonshowdown.com/smogtours-gen8ou-489949
MetalGro$$ gets a full taste of the power of Banded Vish on webs. Even with a Protect turn for two lots of Leftovers, Ferrothorn doesn't stand a chance, and Vish's team just pick up the pieces from there.
https://replay.pokemonshowdown.com/smogtours-gen8ou-490005
Dracovish's other loss, caused by an unexpected Sub CM Primarina setting up on Corviknight. The game is over in 6 turns.
https://replay.pokemonshowdown.com/smogtours-gen8ou-493063
MetalGro$$ ends on the receiving end of Vish again, as his Hyper Offense is cleaned lategame by Scarf Vish.
https://replay.pokemonshowdown.com/smogtours-gen8ou-493169
You could forgive Vileman for thinking he would be fine in this game. With Clefable, Ferrothorn and the mighty Toad all to stop Askov's Dracovish, there was no chance of it making a big impact right? Askov's Kyurem had other ideas, freezing Ferrothorn. Once Toad got hit by Toxic and started to lose health, the writing was on the wall as Vileman was eventually forced into a 50/50 between going to Clef on an Outrage or a weakened Toad on a Rend. He got it wrong, lost Clef, and lost a long endgame.
Week 4 onwards:
https://replay.pokemonshowdown.com/smogtours-gen8ou-493856
Snow Jiniri found himself on the receiving end of Vish's wrath this time. With Zeraora KOing Pex, a couple of Teleports into Leftovers Vish ensured the swift downfall of his defensive core. His Kyurem put in sterling work to fight on, but without defenses Zeraora was always going to clean lategame. Note also how the Toad on Vish's team was total dead weight.
https://replay.pokemonshowdown.com/gen8ou-1103909284
This time Vileman had Vish covered, right? Clef, Toad, Pult to revenge it, even NP Hydreigon and Rotom-H to abuse it if it was Band. Well, he had Vish covered, but the Specs Aegi stfu itz a cartoon had paired with it... Not so much. Aegi forces Vileman to try and PP stall it with Wish Clef. stfu then unveils Grass Knot on his Toad to kill Vileman's Toad, and Vish ends up cleaning Vileman anyway XD. You just can't win when it comes to stopping Vish.
https://replay.pokemonshowdown.com/smogtours-gen8ou-496847
Dracovish Mirror Match! On paper at least. In practice it turned into "Togekiss 6-0s a team". Note again Toad being setup fodder for Togekiss and generally not useful.
https://replay.pokemonshowdown.com/smogtours-gen8ou-496174
To quote lax on turn 4, the moment TSpikes went down:
☆lax: I lose
His experimental balance featuring Kanto Rapidash of all mons was not able to handle ThePex armed with Toxic Spikes. Or on paper at least. Because LORD VISH took it upon itself to singlehandedly win this game by exploiting Toxapex, even after its Choice Band was Knocked Off. Isn't Pex meant to check Vish not vice versa???
https://replay.pokemonshowdown.com/smogtours-gen8ou-498877
Ahh, Band Vish on Webs. Except the Webs get easily removed, and Vish is caught by a Baneful Bunker from Pex. So it just crits the Pex and takes it out from 80%. EZ.
https://replay.pokemonshowdown.com/smogtours-gen8ou-499110
c r u s t i's Dracovish must have been licking its lips at Team Preview. Wait... That is a max Def Primarina! Never mind, it loses lol.
https://replay.pokemonshowdown.com/smogtours-gen8ou-498818
Just the usual. Band Vish cleaving through a Toxapex. marcop9923 decides to sac Mandibuzz while there is a healthy Aegi on Robjr's team. Which, because Sod's Law, is Specs. The game is over, but Vish cleans house anyway.
https://replay.pokemonshowdown.com/gen8ou-1116268255-6rih66hp2plsyai4lrewuw4zmvhuq8zpw
More Band Vish on Webs. Ferro avoids the 2HKO, but that doesn't save it. The game is won by Corckscrew
's excellently played 4 Attacks Excadrill on the opposing side however, with Vish not having much chance to wreak havok.
https://replay.pokemonshowdown.com/smogtours-gen8ou-502144
Apparently, you can go hard Vish into LO King's Shield Aegi twice in one game. In spite of Toad lasting to the end, Vish somehow picks up a kill anyway!
https://replay.pokemonshowdown.com/smogtours-gen8ou-502189
A Rain team, which also featured in one earlier game I didn't show because Vish won without entering the field of play. Toxapex stalls out Rain Scarf Vish by spamming Recover, and then burns it first time with Scald. Mantine with nerfed Metronome gets walled by Clef and that's the game.