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: 9,451,034
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 bottom vs support Counters
Karthus bottom on Patch 14.10 is the strongest counter to support champions of Zyra, Senna & Braum. While Karthus bottom is countered most by support champions of Seraphine, Taric & Rakan. Below is a detailed breakdown of Karthus bottom counters against support champions with a minimum of 100 games.
Seraphine
the Starry-Eyed Songstress
Karthus wins against Seraphine 45.16% of the time which is 4.66% lower against Seraphine than the average opponent.
After normalising both champions win rates Karthus wins against Seraphine 9.19% less often than would be expected.
The average opponent winrate against Seraphineis 49.82%.
Taric
the Shield of Valoran
Karthus wins against Taric 48.67% of the time which is 2.04% higher against Taric than the average opponent.
After normalising both champions win rates Karthus wins against Taric 2.50% less often than would be expected.
The average opponent winrate against Taricis 46.63%.
Rakan
The Charmer
Karthus wins against Rakan 48.80% of the time which is 0.14% lower against Rakan than the average opponent.
After normalising both champions win rates Karthus wins against Rakan 4.68% less often than would be expected.
The average opponent winrate against Rakanis 48.94%.
Janna
the Storm's Fury
Karthus wins against Janna 49.13% of the time which is 0.09% lower against Janna than the average opponent.
After normalising both champions win rates Karthus wins against Janna 4.63% less often than would be expected.
The average opponent winrate against Jannais 49.22%.
Sona
Maven of the Strings
Karthus wins against Sona 49.77% of the time which is 1.79% higher against Sona than the average opponent.
After normalising both champions win rates Karthus wins against Sona 2.75% less often than would be expected.
The average opponent winrate against Sonais 47.98%.
Xerath
the Magus Ascendant
Karthus wins against Xerath 50.00% of the time which is 0.77% higher against Xerath than the average opponent.
After normalising both champions win rates Karthus wins against Xerath 3.77% less often than would be expected.
The average opponent winrate against Xerathis 49.23%.
Milio
The Gentle Flame
Karthus wins against Milio 50.37% of the time which is 0.67% higher against Milio than the average opponent.
After normalising both champions win rates Karthus wins against Milio 3.86% less often than would be expected.
The average opponent winrate against Miliois 49.70%.
Soraka
the Starchild
Karthus wins against Soraka 50.38% of the time which is 1.47% higher against Soraka than the average opponent.
After normalising both champions win rates Karthus wins against Soraka 3.07% less often than would be expected.
The average opponent winrate against Sorakais 48.91%.
Nami
the Tidecaller
Karthus wins against Nami 52.48% of the time which is 2.90% higher against Nami than the average opponent.
After normalising both champions win rates Karthus wins against Nami 1.63% less often than would be expected.
The average opponent winrate against Namiis 49.58%.
Yuumi
the Magical Cat
Karthus wins against Yuumi 52.72% of the time which is 0.61% lower against Yuumi than the average opponent.
After normalising both champions win rates Karthus wins against Yuumi 5.09% less often than would be expected.
The average opponent winrate against Yuumiis 53.33%.
Vel'Koz
the Eye of the Void
Karthus wins against Vel'Koz 53.54% of the time which is 3.82% higher against Vel'Koz than the average opponent.
After normalising both champions win rates Karthus wins against Vel'Koz 0.71% less often than would be expected.
The average opponent winrate against Vel'Kozis 49.72%.
Rell
the Iron Maiden
Karthus wins against Rell 54.03% of the time which is 5.89% higher against Rell than the average opponent.
After normalising both champions win rates Karthus wins against Rell 1.35% more often than would be expected.
The average opponent winrate against Rellis 48.14%.
Lux
the Lady of Luminosity
Karthus wins against Lux 54.25% of the time which is 3.98% higher against Lux than the average opponent.
After normalising both champions win rates Karthus wins against Lux 0.55% less often than would be expected.
The average opponent winrate against Luxis 50.27%.
Lulu
the Fae Sorceress
Karthus wins against Lulu 54.39% of the time which is 3.48% higher against Lulu than the average opponent.
After normalising both champions win rates Karthus wins against Lulu 1.04% less often than would be expected.
The average opponent winrate against Luluis 50.91%.
Leona
the Radiant Dawn
Karthus wins against Leona 54.57% of the time which is 6.75% higher against Leona than the average opponent.
After normalising both champions win rates Karthus wins against Leona 2.21% more often than would be expected.
The average opponent winrate against Leonais 47.82%.
Renata Glasc
the Chem-Baroness
Karthus wins against Renata Glasc 54.95% of the time which is 4.48% higher against Renata Glasc than the average opponent.
After normalising both champions win rates Karthus wins against Renata Glasc 0.05% less often than would be expected.
The average opponent winrate against Renata Glascis 50.47%.
Pyke
the Bloodharbor Ripper
Karthus wins against Pyke 54.97% of the time which is 5.74% higher against Pyke than the average opponent.
After normalising both champions win rates Karthus wins against Pyke 1.20% more often than would be expected.
The average opponent winrate against Pykeis 49.23%.
Alistar
the Minotaur
Karthus wins against Alistar 55.00% of the time which is 5.81% higher against Alistar than the average opponent.
After normalising both champions win rates Karthus wins against Alistar 1.27% more often than would be expected.
The average opponent winrate against Alistaris 49.19%.
Ashe
the Frost Archer
Karthus wins against Ashe 55.17% of the time which is 2.89% higher against Ashe than the average opponent.
After normalising both champions win rates Karthus wins against Ashe 1.61% less often than would be expected.
The average opponent winrate against Asheis 52.28%.
Maokai
the Twisted Treant
Karthus wins against Maokai 55.24% of the time which is 5.88% higher against Maokai than the average opponent.
After normalising both champions win rates Karthus wins against Maokai 1.35% more often than would be expected.
The average opponent winrate against Maokaiis 49.36%.
Poppy
Keeper of the Hammer
Karthus wins against Poppy 55.24% of the time which is 8.01% higher against Poppy than the average opponent.
After normalising both champions win rates Karthus wins against Poppy 3.47% more often than would be expected.
The average opponent winrate against Poppyis 47.23%.
Bard
the Wandering Caretaker
Karthus wins against Bard 56.35% of the time which is 6.62% higher against Bard than the average opponent.
After normalising both champions win rates Karthus wins against Bard 2.09% more often than would be expected.
The average opponent winrate against Bardis 49.73%.
Brand
the Burning Vengeance
Karthus wins against Brand 56.41% of the time which is 4.10% higher against Brand than the average opponent.
After normalising both champions win rates Karthus wins against Brand 0.40% less often than would be expected.
The average opponent winrate against Brandis 52.31%.
Nautilus
the Titan of the Depths
Karthus wins against Nautilus 56.43% of the time which is 6.89% higher against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 2.36% more often than would be expected.
The average opponent winrate against Nautilusis 49.54%.
Karma
the Enlightened One
Karthus wins against Karma 56.44% of the time which is 4.02% higher against Karma than the average opponent.
After normalising both champions win rates Karthus wins against Karma 0.48% less often than would be expected.
The average opponent winrate against Karmais 52.42%.
Thresh
the Chain Warden
Karthus wins against Thresh 57.43% of the time which is 8.25% higher against Thresh than the average opponent.
After normalising both champions win rates Karthus wins against Thresh 3.71% more often than would be expected.
The average opponent winrate against Threshis 49.18%.
Morgana
the Fallen
Karthus wins against Morgana 57.75% of the time which is 6.77% higher against Morgana than the average opponent.
After normalising both champions win rates Karthus wins against Morgana 2.25% more often than would be expected.
The average opponent winrate against Morganais 50.98%.
Blitzcrank
the Great Steam Golem
Karthus wins against Blitzcrank 58.51% of the time which is 9.89% higher against Blitzcrank than the average opponent.
After normalising both champions win rates Karthus wins against Blitzcrank 5.35% more often than would be expected.
The average opponent winrate against Blitzcrankis 48.62%.
Zilean
the Chronokeeper
Karthus wins against Zilean 58.82% of the time which is 8.86% higher against Zilean than the average opponent.
After normalising both champions win rates Karthus wins against Zilean 4.33% more often than would be expected.
The average opponent winrate against Zileanis 49.96%.
Braum
the Heart of the Freljord
Karthus wins against Braum 60.32% of the time which is 12.33% higher against Braum than the average opponent.
After normalising both champions win rates Karthus wins against Braum 7.79% more often than would be expected.
The average opponent winrate against Braumis 47.99%.
Senna
the Redeemer
Karthus wins against Senna 60.71% of the time which is 8.89% higher against Senna than the average opponent.
After normalising both champions win rates Karthus wins against Senna 4.38% more often than would be expected.
The average opponent winrate against Sennais 51.82%.
Zyra
Rise of the Thorns
Karthus wins against Zyra 61.14% of the time which is 11.08% higher against Zyra than the average opponent.
After normalising both champions win rates Karthus wins against Zyra 6.55% more often than would be expected.
The average opponent winrate against Zyrais 50.06%.