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.
Emerald+ Champions Analysed: 51,088,748
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.
Karthus Counters
Karthus middle vs support Counters
Karthus middle on Patch 30 is the strongest counter to support champions of Hwei, Camille & Blitzcrank. While Karthus middle is countered most by support champions of Zilean, Milio & Soraka. Below is a detailed breakdown of Karthus middle counters against support champions with a minimum of 100 games.
Zilean
the Chronokeeper
Karthus wins against Zilean 42.64% of the time which is 5.12% lower against Zilean than the average opponent.
After normalising both champions win rates Karthus wins against Zilean 7.92% less often than would be expected.
The average opponent winrate against Zileanis 47.76%.
Milio
The Gentle Flame
Karthus wins against Milio 44.17% of the time which is 4.09% lower against Milio than the average opponent.
After normalising both champions win rates Karthus wins against Milio 6.89% less often than would be expected.
The average opponent winrate against Miliois 48.26%.
Soraka
the Starchild
Karthus wins against Soraka 45.99% of the time which is 1.21% lower against Soraka than the average opponent.
After normalising both champions win rates Karthus wins against Soraka 4.01% less often than would be expected.
The average opponent winrate against Sorakais 47.20%.
Bard
the Wandering Caretaker
Karthus wins against Bard 46.98% of the time which is 1.21% lower against Bard than the average opponent.
After normalising both champions win rates Karthus wins against Bard 4.01% less often than would be expected.
The average opponent winrate against Bardis 48.19%.
Lulu
the Fae Sorceress
Karthus wins against Lulu 47.29% of the time which is 0.66% lower against Lulu than the average opponent.
After normalising both champions win rates Karthus wins against Lulu 3.46% less often than would be expected.
The average opponent winrate against Luluis 47.95%.
Yuumi
the Magical Cat
Karthus wins against Yuumi 47.41% of the time which is 2.62% lower against Yuumi than the average opponent.
After normalising both champions win rates Karthus wins against Yuumi 5.42% less often than would be expected.
The average opponent winrate against Yuumiis 50.03%.
Rell
the Iron Maiden
Karthus wins against Rell 47.44% of the time which is 0.13% higher against Rell than the average opponent.
After normalising both champions win rates Karthus wins against Rell 2.67% less often than would be expected.
The average opponent winrate against Rellis 47.31%.
Janna
the Storm's Fury
Karthus wins against Janna 48.79% of the time which is 1.66% higher against Janna than the average opponent.
After normalising both champions win rates Karthus wins against Janna 1.14% less often than would be expected.
The average opponent winrate against Jannais 47.13%.
Rakan
The Charmer
Karthus wins against Rakan 48.98% of the time which is 0.79% higher against Rakan than the average opponent.
After normalising both champions win rates Karthus wins against Rakan 2.01% less often than would be expected.
The average opponent winrate against Rakanis 48.19%.
Sona
Maven of the Strings
Karthus wins against Sona 49.19% of the time which is 2.24% higher against Sona than the average opponent.
After normalising both champions win rates Karthus wins against Sona 0.56% less often than would be expected.
The average opponent winrate against Sonais 46.95%.
Seraphine
the Starry-Eyed Songstress
Karthus wins against Seraphine 49.32% of the time which is 1.66% higher against Seraphine than the average opponent.
After normalising both champions win rates Karthus wins against Seraphine 1.14% less often than would be expected.
The average opponent winrate against Seraphineis 47.66%.
Nautilus
the Titan of the Depths
Karthus wins against Nautilus 49.33% of the time which is 0.61% higher against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 2.19% less often than would be expected.
The average opponent winrate against Nautilusis 48.72%.
Zyra
Rise of the Thorns
Karthus wins against Zyra 49.81% of the time which is 2.68% higher against Zyra than the average opponent.
After normalising both champions win rates Karthus wins against Zyra 0.12% less often than would be expected.
The average opponent winrate against Zyrais 47.13%.
Leona
the Radiant Dawn
Karthus wins against Leona 49.86% of the time which is 3.35% higher against Leona than the average opponent.
After normalising both champions win rates Karthus wins against Leona 0.55% more often than would be expected.
The average opponent winrate against Leonais 46.51%.
Alistar
the Minotaur
Karthus wins against Alistar 50.67% of the time which is 2.65% higher against Alistar than the average opponent.
After normalising both champions win rates Karthus wins against Alistar 0.15% less often than would be expected.
The average opponent winrate against Alistaris 48.02%.
Nami
the Tidecaller
Karthus wins against Nami 50.73% of the time which is 3.55% higher against Nami than the average opponent.
After normalising both champions win rates Karthus wins against Nami 0.75% more often than would be expected.
The average opponent winrate against Namiis 47.18%.
Braum
the Heart of the Freljord
Karthus wins against Braum 51.05% of the time which is 4.15% higher against Braum than the average opponent.
After normalising both champions win rates Karthus wins against Braum 1.35% more often than would be expected.
The average opponent winrate against Braumis 46.90%.
Karma
the Enlightened One
Karthus wins against Karma 51.60% of the time which is 2.25% higher against Karma than the average opponent.
After normalising both champions win rates Karthus wins against Karma 0.55% less often than would be expected.
The average opponent winrate against Karmais 49.35%.
Brand
the Burning Vengeance
Karthus wins against Brand 51.82% of the time which is 1.98% higher against Brand than the average opponent.
After normalising both champions win rates Karthus wins against Brand 0.82% less often than would be expected.
The average opponent winrate against Brandis 49.84%.
Morgana
the Fallen
Karthus wins against Morgana 51.82% of the time which is 2.99% higher against Morgana than the average opponent.
After normalising both champions win rates Karthus wins against Morgana 0.19% more often than would be expected.
The average opponent winrate against Morganais 48.83%.
Vel'Koz
the Eye of the Void
Karthus wins against Vel'Koz 52.00% of the time which is 4.29% higher against Vel'Koz than the average opponent.
After normalising both champions win rates Karthus wins against Vel'Koz 1.49% more often than would be expected.
The average opponent winrate against Vel'Kozis 47.71%.
Thresh
the Chain Warden
Karthus wins against Thresh 52.86% of the time which is 4.98% higher against Thresh than the average opponent.
After normalising both champions win rates Karthus wins against Thresh 2.18% more often than would be expected.
The average opponent winrate against Threshis 47.88%.
Lux
the Lady of Luminosity
Karthus wins against Lux 52.87% of the time which is 4.67% higher against Lux than the average opponent.
After normalising both champions win rates Karthus wins against Lux 1.87% more often than would be expected.
The average opponent winrate against Luxis 48.20%.
Senna
the Redeemer
Karthus wins against Senna 54.00% of the time which is 4.84% higher against Senna than the average opponent.
After normalising both champions win rates Karthus wins against Senna 2.04% more often than would be expected.
The average opponent winrate against Sennais 49.16%.
Xerath
the Magus Ascendant
Karthus wins against Xerath 54.78% of the time which is 7.33% higher against Xerath than the average opponent.
After normalising both champions win rates Karthus wins against Xerath 4.53% more often than would be expected.
The average opponent winrate against Xerathis 47.45%.
Ashe
the Frost Archer
Karthus wins against Ashe 54.80% of the time which is 3.65% higher against Ashe than the average opponent.
After normalising both champions win rates Karthus wins against Ashe 0.85% more often than would be expected.
The average opponent winrate against Asheis 51.15%.
Pyke
the Bloodharbor Ripper
Karthus wins against Pyke 55.10% of the time which is 7.46% higher against Pyke than the average opponent.
After normalising both champions win rates Karthus wins against Pyke 4.66% more often than would be expected.
The average opponent winrate against Pykeis 47.64%.
Blitzcrank
the Great Steam Golem
Karthus wins against Blitzcrank 55.12% of the time which is 7.79% higher against Blitzcrank than the average opponent.
After normalising both champions win rates Karthus wins against Blitzcrank 4.99% more often than would be expected.
The average opponent winrate against Blitzcrankis 47.33%.
Camille
the Steel Shadow
Karthus wins against Camille 55.86% of the time which is 6.96% higher against Camille than the average opponent.
After normalising both champions win rates Karthus wins against Camille 4.16% more often than would be expected.
The average opponent winrate against Camilleis 48.90%.
Hwei
the Visionary
Karthus wins against Hwei 60.95% of the time which is 9.22% higher against Hwei than the average opponent.
After normalising both champions win rates Karthus wins against Hwei 6.42% more often than would be expected.
The average opponent winrate against Hweiis 51.73%.