S Rank
:Mimikyu: Mimikyu Yawn
S- Rank
:Darmanitan-Galar: Darmanitan-Galar L
:Jirachi: Jirachi L
A+ Rank
:Dragapult: Dragapult W
:Sylveon: Sylveon ...
A Rank
:Corsola-Galar: Corsola-Galar W
:Dracovish: Dracovish L
A- Rank
:Aegislash: Aegislash L
:Corviknight: Corviknight L
:Crustle: Crustle Quick Attack
:Incineroar: Incineroar (Specs)
:Sawk: Sawk W
:Whimsicott: Whimsicott W
:Zeraora: Zeraora Hyper Beam (I'll count as quick attack)
B+ Rank
:Arcanine: Arcanine L
:Avalugg: Avalugg L
:Cinderace: Cinderace L
:Haxorus: Haxorus L
:Hydreigon: Hydreigon W
:Kyurem: Kyurem W
:Mandibuzz: Mandibuzz W
:Primarina: Primarina W
:Togekiss: Togekiss shenanigans
:Tyranitar: Tyranitar L
B Rank
:Excadrill: Excadrill L
:Golisopod:Golisopod W
:Milotic: Milotic L
:Rhyperior: Rhyperior Predict Set
:Rotom-Wash: Rotom-Wash W
:Snorlax: Snorlax L
:Weezing-Galar: Weezing-Galar L
B- Rank
:Aromatisse: Aromatisse W
:Bewear: Bewear L
:Blastoise: Blastoise W
:Chandelure: Chandelure (specs)
:Conkeldurr: Conkeldurr W
:Dracozolt: Dracozolt L
:Duraludon: Duraludon W
:Durant: Durant L
:Ferrothorn: Ferrothorn (specs)
:Gastrodon: Gastrodon W
:Goodra: Goodra W
:Grimmsnarl: Grimmsnarl W
:Keldeo: Keldeo W
:Rillaboom: Rillaboom W
:Rotom-Heat: Rotom-Heat L
:Steelix: Steelix L
:Terrakion: Terrakion W
20 always win (not counting specs)
Apparently just Mimikyu with Yawn
Two with Quick Attack
Three with Specs