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: 45,547,850
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 support vs support Counters
Karthus support on Patch 14.10 is the strongest counter to support champions of Morgana, Thresh & Nautilus. While Karthus support is countered most by support champions of Nami, Soraka & Brand. Below is a detailed breakdown of Karthus support counters against support champions with a minimum of 100 games.
Nami
the Tidecaller
Karthus wins against Nami 38.04% of the time which is 11.20% lower against Nami than the average opponent.
After normalising both champions win rates Karthus wins against Nami 7.76% less often than would be expected.
The average opponent winrate against Namiis 49.24%.
Soraka
the Starchild
Karthus wins against Soraka 40.00% of the time which is 8.79% lower against Soraka than the average opponent.
After normalising both champions win rates Karthus wins against Soraka 5.36% less often than would be expected.
The average opponent winrate against Sorakais 48.79%.
Lulu
the Fae Sorceress
Karthus wins against Lulu 42.65% of the time which is 8.23% lower against Lulu than the average opponent.
After normalising both champions win rates Karthus wins against Lulu 4.79% less often than would be expected.
The average opponent winrate against Luluis 50.88%.
Brand
the Burning Vengeance
Karthus wins against Brand 42.65% of the time which is 7.50% lower against Brand than the average opponent.
After normalising both champions win rates Karthus wins against Brand 4.06% less often than would be expected.
The average opponent winrate against Brandis 50.15%.
Blitzcrank
the Great Steam Golem
Karthus wins against Blitzcrank 43.92% of the time which is 4.94% lower against Blitzcrank than the average opponent.
After normalising both champions win rates Karthus wins against Blitzcrank 1.51% less often than would be expected.
The average opponent winrate against Blitzcrankis 48.86%.
Pyke
the Bloodharbor Ripper
Karthus wins against Pyke 45.96% of the time which is 4.39% lower against Pyke than the average opponent.
After normalising both champions win rates Karthus wins against Pyke 0.95% less often than would be expected.
The average opponent winrate against Pykeis 50.35%.
Seraphine
the Starry-Eyed Songstress
Karthus wins against Seraphine 46.09% of the time which is 3.67% lower against Seraphine than the average opponent.
After normalising both champions win rates Karthus wins against Seraphine 0.23% less often than would be expected.
The average opponent winrate against Seraphineis 49.76%.
Zyra
Rise of the Thorns
Karthus wins against Zyra 48.32% of the time which is 0.14% lower against Zyra than the average opponent.
After normalising both champions win rates Karthus wins against Zyra 3.29% more often than would be expected.
The average opponent winrate against Zyrais 48.46%.
Lux
the Lady of Luminosity
Karthus wins against Lux 48.49% of the time which is 1.15% lower against Lux than the average opponent.
After normalising both champions win rates Karthus wins against Lux 2.29% more often than would be expected.
The average opponent winrate against Luxis 49.64%.
Senna
the Redeemer
Karthus wins against Senna 50.00% of the time which is 1.78% lower against Senna than the average opponent.
After normalising both champions win rates Karthus wins against Senna 1.66% more often than would be expected.
The average opponent winrate against Sennais 51.78%.
Leona
the Radiant Dawn
Karthus wins against Leona 51.50% of the time which is 3.60% higher against Leona than the average opponent.
After normalising both champions win rates Karthus wins against Leona 7.02% more often than would be expected.
The average opponent winrate against Leonais 47.90%.
Nautilus
the Titan of the Depths
Karthus wins against Nautilus 51.60% of the time which is 1.91% higher against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 5.35% more often than would be expected.
The average opponent winrate against Nautilusis 49.69%.
Thresh
the Chain Warden
Karthus wins against Thresh 51.85% of the time which is 2.41% higher against Thresh than the average opponent.
After normalising both champions win rates Karthus wins against Thresh 5.85% more often than would be expected.
The average opponent winrate against Threshis 49.44%.
Morgana
the Fallen
Karthus wins against Morgana 55.02% of the time which is 5.65% higher against Morgana than the average opponent.
After normalising both champions win rates Karthus wins against Morgana 9.09% more often than would be expected.
The average opponent winrate against Morganais 49.37%.