This will vary because unlike other stat sites we include 100% of a brackets champions played and never include champions that don't belong in the bracket.
All Ranks Champions Analysed: 226,986,970
We include 100% of the champions played of every selected tier bracket in our analysis, we never include champions from outside the tier quoted tier.
Sion Counters
Sion middle vs middle Counters
Sion middle on Patch 30 is the strongest counter to middle champions of Karthus, Qiyana & Ezreal. While Sion middle is countered most by middle champions of Swain, Riven & Tryndamere. Below is a detailed breakdown of Sion middle counters against middle champions with a minimum of 100 games.
Swain
the Noxian Grand General
Sion wins against Swain 34.91% of the time which is 12.76% lower against Swain than the average opponent.
After normalising both champions win rates Sion wins against Swain 13.65% less often than would be expected.
The average opponent winrate against Swainis 47.67%.
Riven
the Exile
Sion wins against Riven 39.53% of the time which is 10.39% lower against Riven than the average opponent.
After normalising both champions win rates Sion wins against Riven 11.28% less often than would be expected.
The average opponent winrate against Rivenis 49.92%.
Tryndamere
the Barbarian King
Sion wins against Tryndamere 41.45% of the time which is 4.80% lower against Tryndamere than the average opponent.
After normalising both champions win rates Sion wins against Tryndamere 5.69% less often than would be expected.
The average opponent winrate against Tryndamereis 46.25%.
Mordekaiser
the Iron Revenant
Sion wins against Mordekaiser 42.97% of the time which is 4.22% lower against Mordekaiser than the average opponent.
After normalising both champions win rates Sion wins against Mordekaiser 5.11% less often than would be expected.
The average opponent winrate against Mordekaiseris 47.19%.
Illaoi
the Kraken Priestess
Sion wins against Illaoi 43.37% of the time which is 4.80% lower against Illaoi than the average opponent.
After normalising both champions win rates Sion wins against Illaoi 5.69% less often than would be expected.
The average opponent winrate against Illaoiis 48.17%.
Quinn
Demacia's Wings
Sion wins against Quinn 43.38% of the time which is 4.67% lower against Quinn than the average opponent.
After normalising both champions win rates Sion wins against Quinn 5.56% less often than would be expected.
The average opponent winrate against Quinnis 48.05%.
Brand
the Burning Vengeance
Sion wins against Brand 45.04% of the time which is 1.52% lower against Brand than the average opponent.
After normalising both champions win rates Sion wins against Brand 2.41% less often than would be expected.
The average opponent winrate against Brandis 46.56%.
Yone
the Unforgotten
Sion wins against Yone 45.42% of the time which is 6.20% lower against Yone than the average opponent.
After normalising both champions win rates Sion wins against Yone 7.09% less often than would be expected.
The average opponent winrate against Yoneis 51.62%.
Vayne
the Night Hunter
Sion wins against Vayne 45.64% of the time which is 4.74% lower against Vayne than the average opponent.
After normalising both champions win rates Sion wins against Vayne 5.63% less often than would be expected.
The average opponent winrate against Vayneis 50.38%.
Sett
the Boss
Sion wins against Sett 45.71% of the time which is 0.09% higher against Sett than the average opponent.
After normalising both champions win rates Sion wins against Sett 0.79% less often than would be expected.
The average opponent winrate against Settis 45.62%.
Viego
The Ruined King
Sion wins against Viego 45.76% of the time which is 3.97% lower against Viego than the average opponent.
After normalising both champions win rates Sion wins against Viego 4.86% less often than would be expected.
The average opponent winrate against Viegois 49.73%.
Aurelion Sol
The Star Forger
Sion wins against Aurelion Sol 46.19% of the time which is 2.85% lower against Aurelion Sol than the average opponent.
After normalising both champions win rates Sion wins against Aurelion Sol 3.74% less often than would be expected.
The average opponent winrate against Aurelion Solis 49.04%.
Karma
the Enlightened One
Sion wins against Karma 46.53% of the time which is 4.91% lower against Karma than the average opponent.
After normalising both champions win rates Sion wins against Karma 5.80% less often than would be expected.
The average opponent winrate against Karmais 51.44%.
Aatrox
the Darkin Blade
Sion wins against Aatrox 46.71% of the time which is 3.89% lower against Aatrox than the average opponent.
After normalising both champions win rates Sion wins against Aatrox 4.78% less often than would be expected.
The average opponent winrate against Aatroxis 50.60%.
Anivia
the Cryophoenix
Sion wins against Anivia 46.89% of the time which is 0.90% lower against Anivia than the average opponent.
After normalising both champions win rates Sion wins against Anivia 1.79% less often than would be expected.
The average opponent winrate against Aniviais 47.79%.
Syndra
the Dark Sovereign
Sion wins against Syndra 46.89% of the time which is 3.29% lower against Syndra than the average opponent.
After normalising both champions win rates Sion wins against Syndra 4.18% less often than would be expected.
The average opponent winrate against Syndrais 50.18%.
Smolder
the Fiery Fledgling
Sion wins against Smolder 46.96% of the time which is 7.03% lower against Smolder than the average opponent.
After normalising both champions win rates Sion wins against Smolder 7.91% less often than would be expected.
The average opponent winrate against Smolderis 53.99%.
Gwen
The Hallowed Seamstress
Sion wins against Gwen 47.11% of the time which is 3.28% lower against Gwen than the average opponent.
After normalising both champions win rates Sion wins against Gwen 4.17% less often than would be expected.
The average opponent winrate against Gwenis 50.39%.
Kayle
the Righteous
Sion wins against Kayle 47.26% of the time which is 0.01% higher against Kayle than the average opponent.
After normalising both champions win rates Sion wins against Kayle 0.88% less often than would be expected.
The average opponent winrate against Kayleis 47.25%.
Twisted Fate
the Card Master
Sion wins against Twisted Fate 47.27% of the time which is 1.94% lower against Twisted Fate than the average opponent.
After normalising both champions win rates Sion wins against Twisted Fate 2.83% less often than would be expected.
The average opponent winrate against Twisted Fateis 49.21%.
Renekton
the Butcher of the Sands
Sion wins against Renekton 47.35% of the time which is 0.09% lower against Renekton than the average opponent.
After normalising both champions win rates Sion wins against Renekton 0.98% less often than would be expected.
The average opponent winrate against Renektonis 47.44%.
Kennen
the Heart of the Tempest
Sion wins against Kennen 47.35% of the time which is 0.37% lower against Kennen than the average opponent.
After normalising both champions win rates Sion wins against Kennen 1.26% less often than would be expected.
The average opponent winrate against Kennenis 47.72%.
Gragas
the Rabble Rouser
Sion wins against Gragas 47.70% of the time which is 1.13% lower against Gragas than the average opponent.
After normalising both champions win rates Sion wins against Gragas 2.02% less often than would be expected.
The average opponent winrate against Gragasis 48.83%.
Cho'Gath
the Terror of the Void
Sion wins against Cho'Gath 47.75% of the time which is 1.94% lower against Cho'Gath than the average opponent.
After normalising both champions win rates Sion wins against Cho'Gath 2.83% less often than would be expected.
The average opponent winrate against Cho'Gathis 49.69%.
Rumble
the Mechanized Menace
Sion wins against Rumble 47.99% of the time which is 0.99% lower against Rumble than the average opponent.
After normalising both champions win rates Sion wins against Rumble 1.88% less often than would be expected.
The average opponent winrate against Rumbleis 48.98%.
Trundle
the Troll King
Sion wins against Trundle 48.28% of the time which is 0.60% lower against Trundle than the average opponent.
After normalising both champions win rates Sion wins against Trundle 1.49% less often than would be expected.
The average opponent winrate against Trundleis 48.88%.
Akshan
the Rogue Sentinel
Sion wins against Akshan 48.49% of the time which is 0.08% higher against Akshan than the average opponent.
After normalising both champions win rates Sion wins against Akshan 0.81% less often than would be expected.
The average opponent winrate against Akshanis 48.41%.
Cassiopeia
the Serpent's Embrace
Sion wins against Cassiopeia 48.56% of the time which is 0.13% lower against Cassiopeia than the average opponent.
After normalising both champions win rates Sion wins against Cassiopeia 1.02% less often than would be expected.
The average opponent winrate against Cassiopeiais 48.69%.
Tristana
the Yordle Gunner
Sion wins against Tristana 48.70% of the time which is 1.52% lower against Tristana than the average opponent.
After normalising both champions win rates Sion wins against Tristana 2.41% less often than would be expected.
The average opponent winrate against Tristanais 50.22%.
Viktor
the Machine Herald
Sion wins against Viktor 48.75% of the time which is 0.00% lower against Viktor than the average opponent.
After normalising both champions win rates Sion wins against Viktor 0.89% less often than would be expected.
The average opponent winrate against Viktoris 48.75%.
Gangplank
the Saltwater Scourge
Sion wins against Gangplank 49.06% of the time which is 2.84% lower against Gangplank than the average opponent.
After normalising both champions win rates Sion wins against Gangplank 3.73% less often than would be expected.
The average opponent winrate against Gangplankis 51.90%.
Hwei
the Visionary
Sion wins against Hwei 49.11% of the time which is 1.53% lower against Hwei than the average opponent.
After normalising both champions win rates Sion wins against Hwei 2.42% less often than would be expected.
The average opponent winrate against Hweiis 50.64%.
Veigar
the Tiny Master of Evil
Sion wins against Veigar 49.31% of the time which is 1.36% higher against Veigar than the average opponent.
After normalising both champions win rates Sion wins against Veigar 0.47% more often than would be expected.
The average opponent winrate against Veigaris 47.95%.
Yorick
Shepherd of Souls
Sion wins against Yorick 49.44% of the time which is 1.85% higher against Yorick than the average opponent.
After normalising both champions win rates Sion wins against Yorick 0.96% more often than would be expected.
The average opponent winrate against Yorickis 47.59%.
Vladimir
the Crimson Reaper
Sion wins against Vladimir 49.57% of the time which is 0.76% lower against Vladimir than the average opponent.
After normalising both champions win rates Sion wins against Vladimir 1.65% less often than would be expected.
The average opponent winrate against Vladimiris 50.33%.
Ziggs
the Hexplosives Expert
Sion wins against Ziggs 49.77% of the time which is 0.65% lower against Ziggs than the average opponent.
After normalising both champions win rates Sion wins against Ziggs 1.54% less often than would be expected.
The average opponent winrate against Ziggsis 50.42%.
Ahri
the Nine-Tailed Fox
Sion wins against Ahri 49.87% of the time which is 0.36% higher against Ahri than the average opponent.
After normalising both champions win rates Sion wins against Ahri 0.53% less often than would be expected.
The average opponent winrate against Ahriis 49.51%.
Taliyah
the Stoneweaver
Sion wins against Taliyah 49.87% of the time which is 0.29% lower against Taliyah than the average opponent.
After normalising both champions win rates Sion wins against Taliyah 1.18% less often than would be expected.
The average opponent winrate against Taliyahis 50.16%.
Naafiri
the Hound of a Hundred Bites
Sion wins against Naafiri 49.92% of the time which is 0.32% higher against Naafiri than the average opponent.
After normalising both champions win rates Sion wins against Naafiri 0.57% less often than would be expected.
The average opponent winrate against Naafiriis 49.60%.
Dr. Mundo
the Madman of Zaun
Sion wins against Dr. Mundo 50.00% of the time which is 1.65% higher against Dr. Mundo than the average opponent.
After normalising both champions win rates Sion wins against Dr. Mundo 0.76% more often than would be expected.
The average opponent winrate against Dr. Mundois 48.35%.
Teemo
the Swift Scout
Sion wins against Teemo 50.19% of the time which is 1.17% higher against Teemo than the average opponent.
After normalising both champions win rates Sion wins against Teemo 0.28% more often than would be expected.
The average opponent winrate against Teemois 49.02%.
Irelia
the Blade Dancer
Sion wins against Irelia 50.20% of the time which is 0.88% higher against Irelia than the average opponent.
After normalising both champions win rates Sion wins against Irelia 0.01% less often than would be expected.
The average opponent winrate against Ireliais 49.32%.
Pantheon
the Unbreakable Spear
Sion wins against Pantheon 50.39% of the time which is 0.52% higher against Pantheon than the average opponent.
After normalising both champions win rates Sion wins against Pantheon 0.37% less often than would be expected.
The average opponent winrate against Pantheonis 49.87%.
Shen
the Eye of Twilight
Sion wins against Shen 50.50% of the time which is 3.62% higher against Shen than the average opponent.
After normalising both champions win rates Sion wins against Shen 2.73% more often than would be expected.
The average opponent winrate against Shenis 46.88%.
Garen
The Might of Demacia
Sion wins against Garen 50.55% of the time which is 3.82% higher against Garen than the average opponent.
After normalising both champions win rates Sion wins against Garen 2.93% more often than would be expected.
The average opponent winrate against Garenis 46.73%.
Corki
the Daring Bombardier
Sion wins against Corki 50.58% of the time which is 3.79% lower against Corki than the average opponent.
After normalising both champions win rates Sion wins against Corki 4.67% less often than would be expected.
The average opponent winrate against Corkiis 54.37%.
Neeko
the Curious Chameleon
Sion wins against Neeko 50.62% of the time which is 0.09% higher against Neeko than the average opponent.
After normalising both champions win rates Sion wins against Neeko 0.80% less often than would be expected.
The average opponent winrate against Neekois 50.53%.
Orianna
the Lady of Clockwork
Sion wins against Orianna 50.74% of the time which is 0.98% lower against Orianna than the average opponent.
After normalising both champions win rates Sion wins against Orianna 1.87% less often than would be expected.
The average opponent winrate against Oriannais 51.72%.
Kai'Sa
Daughter of the Void
Sion wins against Kai'Sa 50.85% of the time which is 3.13% lower against Kai'Sa than the average opponent.
After normalising both champions win rates Sion wins against Kai'Sa 4.01% less often than would be expected.
The average opponent winrate against Kai'Sais 53.98%.
Darius
the Hand of Noxus
Sion wins against Darius 50.96% of the time which is 1.85% higher against Darius than the average opponent.
After normalising both champions win rates Sion wins against Darius 0.96% more often than would be expected.
The average opponent winrate against Dariusis 49.11%.
Ryze
the Rune Mage
Sion wins against Ryze 50.96% of the time which is 0.62% higher against Ryze than the average opponent.
After normalising both champions win rates Sion wins against Ryze 0.27% less often than would be expected.
The average opponent winrate against Ryzeis 50.34%.
Lissandra
the Ice Witch
Sion wins against Lissandra 50.96% of the time which is 0.04% higher against Lissandra than the average opponent.
After normalising both champions win rates Sion wins against Lissandra 0.85% less often than would be expected.
The average opponent winrate against Lissandrais 50.92%.
Malphite
Shard of the Monolith
Sion wins against Malphite 51.17% of the time which is 1.47% higher against Malphite than the average opponent.
After normalising both champions win rates Sion wins against Malphite 0.58% more often than would be expected.
The average opponent winrate against Malphiteis 49.70%.
Galio
the Colossus
Sion wins against Galio 51.25% of the time which is 3.01% higher against Galio than the average opponent.
After normalising both champions win rates Sion wins against Galio 2.12% more often than would be expected.
The average opponent winrate against Galiois 48.24%.
Skarner
the Crystal Vanguard
Sion wins against Skarner 51.46% of the time which is 2.38% higher against Skarner than the average opponent.
After normalising both champions win rates Sion wins against Skarner 1.49% more often than would be expected.
The average opponent winrate against Skarneris 49.08%.
Lux
the Lady of Luminosity
Sion wins against Lux 51.50% of the time which is 2.90% higher against Lux than the average opponent.
After normalising both champions win rates Sion wins against Lux 2.01% more often than would be expected.
The average opponent winrate against Luxis 48.60%.
Vel'Koz
the Eye of the Void
Sion wins against Vel'Koz 51.83% of the time which is 2.51% higher against Vel'Koz than the average opponent.
After normalising both champions win rates Sion wins against Vel'Koz 1.62% more often than would be expected.
The average opponent winrate against Vel'Kozis 49.32%.
Twitch
the Plague Rat
Sion wins against Twitch 51.85% of the time which is 2.06% higher against Twitch than the average opponent.
After normalising both champions win rates Sion wins against Twitch 1.17% more often than would be expected.
The average opponent winrate against Twitchis 49.79%.
Annie
the Dark Child
Sion wins against Annie 51.92% of the time which is 3.35% higher against Annie than the average opponent.
After normalising both champions win rates Sion wins against Annie 2.46% more often than would be expected.
The average opponent winrate against Annieis 48.57%.
Xerath
the Magus Ascendant
Sion wins against Xerath 51.95% of the time which is 3.16% higher against Xerath than the average opponent.
After normalising both champions win rates Sion wins against Xerath 2.27% more often than would be expected.
The average opponent winrate against Xerathis 48.79%.
Azir
the Emperor of the Sands
Sion wins against Azir 52.03% of the time which is 2.42% lower against Azir than the average opponent.
After normalising both champions win rates Sion wins against Azir 3.30% less often than would be expected.
The average opponent winrate against Aziris 54.45%.
Katarina
the Sinister Blade
Sion wins against Katarina 52.17% of the time which is 1.34% higher against Katarina than the average opponent.
After normalising both champions win rates Sion wins against Katarina 0.45% more often than would be expected.
The average opponent winrate against Katarinais 50.83%.
Nasus
the Curator of the Sands
Sion wins against Nasus 52.22% of the time which is 3.95% higher against Nasus than the average opponent.
After normalising both champions win rates Sion wins against Nasus 3.06% more often than would be expected.
The average opponent winrate against Nasusis 48.27%.
Kassadin
the Void Walker
Sion wins against Kassadin 52.43% of the time which is 2.76% higher against Kassadin than the average opponent.
After normalising both champions win rates Sion wins against Kassadin 1.87% more often than would be expected.
The average opponent winrate against Kassadinis 49.67%.
Jayce
the Defender of Tomorrow
Sion wins against Jayce 52.50% of the time which is 0.99% higher against Jayce than the average opponent.
After normalising both champions win rates Sion wins against Jayce 0.10% more often than would be expected.
The average opponent winrate against Jayceis 51.51%.
Varus
the Arrow of Retribution
Sion wins against Varus 52.53% of the time which is 1.97% lower against Varus than the average opponent.
After normalising both champions win rates Sion wins against Varus 2.85% less often than would be expected.
The average opponent winrate against Varusis 54.50%.
Caitlyn
the Sheriff of Piltover
Sion wins against Caitlyn 52.90% of the time which is 0.05% lower against Caitlyn than the average opponent.
After normalising both champions win rates Sion wins against Caitlyn 0.94% less often than would be expected.
The average opponent winrate against Caitlynis 52.95%.
Zac
the Secret Weapon
Sion wins against Zac 52.94% of the time which is 6.76% higher against Zac than the average opponent.
After normalising both champions win rates Sion wins against Zac 5.87% more often than would be expected.
The average opponent winrate against Zacis 46.18%.
Lucian
the Purifier
Sion wins against Lucian 52.96% of the time which is 0.50% lower against Lucian than the average opponent.
After normalising both champions win rates Sion wins against Lucian 1.38% less often than would be expected.
The average opponent winrate against Lucianis 53.46%.
Yasuo
the Unforgiven
Sion wins against Yasuo 53.01% of the time which is 1.33% higher against Yasuo than the average opponent.
After normalising both champions win rates Sion wins against Yasuo 0.44% more often than would be expected.
The average opponent winrate against Yasuois 51.68%.
Sylas
the Unshackled
Sion wins against Sylas 53.15% of the time which is 3.80% higher against Sylas than the average opponent.
After normalising both champions win rates Sion wins against Sylas 2.91% more often than would be expected.
The average opponent winrate against Sylasis 49.35%.
Graves
the Outlaw
Sion wins against Graves 53.26% of the time which is 2.32% higher against Graves than the average opponent.
After normalising both champions win rates Sion wins against Graves 1.43% more often than would be expected.
The average opponent winrate against Gravesis 50.94%.
Akali
the Rogue Assassin
Sion wins against Akali 53.35% of the time which is 3.24% higher against Akali than the average opponent.
After normalising both champions win rates Sion wins against Akali 2.35% more often than would be expected.
The average opponent winrate against Akaliis 50.11%.
Seraphine
the Starry-Eyed Songstress
Sion wins against Seraphine 53.40% of the time which is 3.16% higher against Seraphine than the average opponent.
After normalising both champions win rates Sion wins against Seraphine 2.27% more often than would be expected.
The average opponent winrate against Seraphineis 50.24%.
Ekko
the Boy Who Shattered Time
Sion wins against Ekko 53.51% of the time which is 4.19% higher against Ekko than the average opponent.
After normalising both champions win rates Sion wins against Ekko 3.30% more often than would be expected.
The average opponent winrate against Ekkois 49.32%.
K'Sante
the Pride of Nazumah
Sion wins against K'Sante 53.52% of the time which is 1.16% lower against K'Sante than the average opponent.
After normalising both champions win rates Sion wins against K'Sante 2.04% less often than would be expected.
The average opponent winrate against K'Santeis 54.68%.
Diana
Scorn of the Moon
Sion wins against Diana 53.63% of the time which is 5.02% higher against Diana than the average opponent.
After normalising both champions win rates Sion wins against Diana 4.13% more often than would be expected.
The average opponent winrate against Dianais 48.61%.
Morgana
the Fallen
Sion wins against Morgana 53.88% of the time which is 5.02% higher against Morgana than the average opponent.
After normalising both champions win rates Sion wins against Morgana 4.13% more often than would be expected.
The average opponent winrate against Morganais 48.86%.
Vex
the Gloomist
Sion wins against Vex 54.00% of the time which is 5.56% higher against Vex than the average opponent.
After normalising both champions win rates Sion wins against Vex 4.67% more often than would be expected.
The average opponent winrate against Vexis 48.44%.
Heimerdinger
the Revered Inventor
Sion wins against Heimerdinger 54.47% of the time which is 6.63% higher against Heimerdinger than the average opponent.
After normalising both champions win rates Sion wins against Heimerdinger 5.74% more often than would be expected.
The average opponent winrate against Heimerdingeris 47.84%.
Fizz
the Tidal Trickster
Sion wins against Fizz 54.49% of the time which is 5.04% higher against Fizz than the average opponent.
After normalising both champions win rates Sion wins against Fizz 4.15% more often than would be expected.
The average opponent winrate against Fizzis 49.45%.
Zed
the Master of Shadows
Sion wins against Zed 54.58% of the time which is 2.96% higher against Zed than the average opponent.
After normalising both champions win rates Sion wins against Zed 2.07% more often than would be expected.
The average opponent winrate against Zedis 51.62%.
Talon
the Blade's Shadow
Sion wins against Talon 55.06% of the time which is 3.28% higher against Talon than the average opponent.
After normalising both champions win rates Sion wins against Talon 2.39% more often than would be expected.
The average opponent winrate against Talonis 51.78%.
LeBlanc
the Deceiver
Sion wins against LeBlanc 55.49% of the time which is 3.66% higher against LeBlanc than the average opponent.
After normalising both champions win rates Sion wins against LeBlanc 2.77% more often than would be expected.
The average opponent winrate against LeBlancis 51.83%.
Zyra
Rise of the Thorns
Sion wins against Zyra 56.19% of the time which is 6.00% higher against Zyra than the average opponent.
After normalising both champions win rates Sion wins against Zyra 5.11% more often than would be expected.
The average opponent winrate against Zyrais 50.19%.
Nunu & Willump
the Boy and His Yeti
Sion wins against Nunu & Willump 56.25% of the time which is 3.66% higher against Nunu & Willump than the average opponent.
After normalising both champions win rates Sion wins against Nunu & Willump 2.77% more often than would be expected.
The average opponent winrate against Nunu & Willumpis 52.59%.
Malzahar
the Prophet of the Void
Sion wins against Malzahar 56.36% of the time which is 7.67% higher against Malzahar than the average opponent.
After normalising both champions win rates Sion wins against Malzahar 6.78% more often than would be expected.
The average opponent winrate against Malzaharis 48.69%.
Zoe
the Aspect of Twilight
Sion wins against Zoe 57.51% of the time which is 5.86% higher against Zoe than the average opponent.
After normalising both champions win rates Sion wins against Zoe 4.97% more often than would be expected.
The average opponent winrate against Zoeis 51.65%.
Ezreal
the Prodigal Explorer
Sion wins against Ezreal 57.58% of the time which is 0.52% higher against Ezreal than the average opponent.
After normalising both champions win rates Sion wins against Ezreal 0.35% less often than would be expected.
The average opponent winrate against Ezrealis 57.06%.
Qiyana
Empress of the Elements
Sion wins against Qiyana 58.15% of the time which is 5.79% higher against Qiyana than the average opponent.
After normalising both champions win rates Sion wins against Qiyana 4.90% more often than would be expected.
The average opponent winrate against Qiyanais 52.36%.
Karthus
the Deathsinger
Sion wins against Karthus 59.80% of the time which is 9.24% higher against Karthus than the average opponent.
After normalising both champions win rates Sion wins against Karthus 8.35% more often than would be expected.
The average opponent winrate against Karthusis 50.56%.