

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: 17,380,355
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 15.2 is the strongest counter to support champions of Blitzcrank, Nautilus & Braum. While Karthus bottom is countered most by support champions of Rakan, Janna & Sona. Below is a detailed breakdown of Karthus bottom counters against support champions with a minimum of 100 games.


Rakan
The Charmer
Karthus wins against Rakan 44.32% of the time which is 5.59% lower against Rakan than the average opponent.
After normalising both champions win rates Karthus wins against Rakan 10.13% less often than would be expected.
The average opponent winrate against Rakan is 49.91%.


Janna
the Storm's Fury
Karthus wins against Janna 48.48% of the time which is 1.18% higher against Janna than the average opponent.
After normalising both champions win rates Karthus wins against Janna 3.36% less often than would be expected.
The average opponent winrate against Janna is 47.30%.


Sona
Maven of the Strings
Karthus wins against Sona 48.59% of the time which is 2.38% higher against Sona than the average opponent.
After normalising both champions win rates Karthus wins against Sona 2.16% less often than would be expected.
The average opponent winrate against Sona is 46.21%.


Yuumi
the Magical Cat
Karthus wins against Yuumi 50.00% of the time which is 1.08% higher against Yuumi than the average opponent.
After normalising both champions win rates Karthus wins against Yuumi 3.46% less often than would be expected.
The average opponent winrate against Yuumi is 48.92%.


Tahm Kench
The River King
Karthus wins against Tahm Kench 50.00% of the time which is 2.05% higher against Tahm Kench than the average opponent.
After normalising both champions win rates Karthus wins against Tahm Kench 2.49% less often than would be expected.
The average opponent winrate against Tahm Kench is 47.95%.


Maokai
the Twisted Treant
Karthus wins against Maokai 50.44% of the time which is 3.41% higher against Maokai than the average opponent.
After normalising both champions win rates Karthus wins against Maokai 1.13% less often than would be expected.
The average opponent winrate against Maokai is 47.03%.


Bard
the Wandering Caretaker
Karthus wins against Bard 50.60% of the time which is 2.30% higher against Bard than the average opponent.
After normalising both champions win rates Karthus wins against Bard 2.24% less often than would be expected.
The average opponent winrate against Bard is 48.30%.


Milio
The Gentle Flame
Karthus wins against Milio 50.68% of the time which is 3.42% higher against Milio than the average opponent.
After normalising both champions win rates Karthus wins against Milio 1.12% less often than would be expected.
The average opponent winrate against Milio is 47.26%.


Rell
the Iron Maiden
Karthus wins against Rell 50.68% of the time which is 3.16% higher against Rell than the average opponent.
After normalising both champions win rates Karthus wins against Rell 1.38% less often than would be expected.
The average opponent winrate against Rell is 47.52%.


Poppy
Keeper of the Hammer
Karthus wins against Poppy 50.89% of the time which is 4.12% higher against Poppy than the average opponent.
After normalising both champions win rates Karthus wins against Poppy 0.42% less often than would be expected.
The average opponent winrate against Poppy is 46.77%.


Lulu
the Fae Sorceress
Karthus wins against Lulu 51.00% of the time which is 4.53% higher against Lulu than the average opponent.
After normalising both champions win rates Karthus wins against Lulu 0.01% less often than would be expected.
The average opponent winrate against Lulu is 46.47%.


Nami
the Tidecaller
Karthus wins against Nami 51.05% of the time which is 4.27% higher against Nami than the average opponent.
After normalising both champions win rates Karthus wins against Nami 0.27% less often than would be expected.
The average opponent winrate against Nami is 46.78%.


Karma
the Enlightened One
Karthus wins against Karma 51.40% of the time which is 3.45% higher against Karma than the average opponent.
After normalising both champions win rates Karthus wins against Karma 1.09% less often than would be expected.
The average opponent winrate against Karma is 47.95%.


Zilean
the Chronokeeper
Karthus wins against Zilean 51.89% of the time which is 4.08% higher against Zilean than the average opponent.
After normalising both champions win rates Karthus wins against Zilean 0.46% less often than would be expected.
The average opponent winrate against Zilean is 47.81%.


Leona
the Radiant Dawn
Karthus wins against Leona 52.71% of the time which is 4.32% higher against Leona than the average opponent.
After normalising both champions win rates Karthus wins against Leona 0.22% less often than would be expected.
The average opponent winrate against Leona is 48.39%.


Senna
the Redeemer
Karthus wins against Senna 53.06% of the time which is 5.73% higher against Senna than the average opponent.
After normalising both champions win rates Karthus wins against Senna 1.19% more often than would be expected.
The average opponent winrate against Senna is 47.33%.


Soraka
the Starchild
Karthus wins against Soraka 53.23% of the time which is 5.81% higher against Soraka than the average opponent.
After normalising both champions win rates Karthus wins against Soraka 1.27% more often than would be expected.
The average opponent winrate against Soraka is 47.42%.


Seraphine
the Starry-Eyed Songstress
Karthus wins against Seraphine 53.23% of the time which is 4.26% higher against Seraphine than the average opponent.
After normalising both champions win rates Karthus wins against Seraphine 0.28% less often than would be expected.
The average opponent winrate against Seraphine is 48.97%.


Thresh
the Chain Warden
Karthus wins against Thresh 55.71% of the time which is 7.56% higher against Thresh than the average opponent.
After normalising both champions win rates Karthus wins against Thresh 3.02% more often than would be expected.
The average opponent winrate against Thresh is 48.15%.


Lux
the Lady of Luminosity
Karthus wins against Lux 56.02% of the time which is 7.52% higher against Lux than the average opponent.
After normalising both champions win rates Karthus wins against Lux 2.98% more often than would be expected.
The average opponent winrate against Lux is 48.50%.


Elise
the Spider Queen
Karthus wins against Elise 56.16% of the time which is 8.32% higher against Elise than the average opponent.
After normalising both champions win rates Karthus wins against Elise 3.78% more often than would be expected.
The average opponent winrate against Elise is 47.84%.


Pyke
the Bloodharbor Ripper
Karthus wins against Pyke 56.94% of the time which is 7.64% higher against Pyke than the average opponent.
After normalising both champions win rates Karthus wins against Pyke 3.10% more often than would be expected.
The average opponent winrate against Pyke is 49.30%.


Alistar
the Minotaur
Karthus wins against Alistar 57.25% of the time which is 7.86% higher against Alistar than the average opponent.
After normalising both champions win rates Karthus wins against Alistar 3.32% more often than would be expected.
The average opponent winrate against Alistar is 49.39%.


Braum
the Heart of the Freljord
Karthus wins against Braum 57.58% of the time which is 10.09% higher against Braum than the average opponent.
After normalising both champions win rates Karthus wins against Braum 5.55% more often than would be expected.
The average opponent winrate against Braum is 47.49%.


Nautilus
the Titan of the Depths
Karthus wins against Nautilus 57.61% of the time which is 7.75% higher against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 3.21% more often than would be expected.
The average opponent winrate against Nautilus is 49.86%.


Blitzcrank
the Great Steam Golem
Karthus wins against Blitzcrank 58.20% of the time which is 9.14% higher against Blitzcrank than the average opponent.
After normalising both champions win rates Karthus wins against Blitzcrank 4.60% more often than would be expected.
The average opponent winrate against Blitzcrank is 49.06%.