Many thanks to
@Sundance_2099 for this list , now updated with 2024 and 2025 champions
Afghan=1 - Dust
Argentinean=1 - Sauron
Attilan Inhuman=3 - Black Bolt,Karnak,Medusa
Atlantean=1 - Namor
Brazilian=1 - Sunspot
British=5 - Blade, Captain Britain/Psylocke, Mister Sinister, Toad
Canadian=13 - Chee’ilth,Deadpool/Deadpool (X-Force)/Goldpool/Platpool, Guardian, Northstar, Old Man Logan/Wolverine/Wolverine (Weapon X), Sabretooth, Sasquatch, Wolverine (X-23)
Chinese=2 - Mister Negative,Shang-Chi
Egyptian=1 - Apocalypse
French=1 - Guillotine
Genoshan=1 - Negasonic Teenager Warhead
German=5 - Baron Zemo, Magneto/Magneto (House of X), Nightcrawler, Red Skull
Greek=3 - Elektra,Hercules,Morbius
Haitian=1 - Doctor Voodoo
Indian=1 - Omega Sentinel
Italian=1 - Count Nefaria
Japanese=1 - Lady Deathstrike
Kenyan=2 - Storm/Storm (Pyramid X)
Latverian=2 - Doctor Doom/Iron Man (Infamous)
Mexican=2 - Falcon (Joaquin Torres),Mas acre
Romenian=1 - Mordo
Russian=10 - Abomination ,Black Widow/Black Widow (Deadly Origin), Colossus/Unstoppable Colossus, Kraven, Magik,Omega Red, Red Guardian, Rhino
Serbian=3 - Quicksilver, Scarlet Witch (Classic)/Scarlet Witch
Symkarian=1 - Silver Sable
Spaniard=1 - Diablo
Swiss=1 - Arnim Zola
Talokani=1 - Attuma
Tibetan=1 - Wong
Vietnamese=1 - Mantis
Wakandan=5 - Black Panther/Black Panther (Civil War), Gentle, Okoye, Shuri