

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: 43,611,100
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 7 is the strongest counter to support champions of Nautilus, Thresh & Morgana. While Karthus support is countered most by support champions of Nami, Lux & Leona. Below is a detailed breakdown of Karthus support counters against support champions with a minimum of 100 games.


Nami
Aquamancienne
Karthus wins against Nami 40.18% of the time which is 7.86% lower against Nami than the average opponent.
After normalising both champions win rates Karthus wins against Nami 4.75% less often than would be expected.
The average opponent winrate against Nami is 48.04%.


Lux
Dame de lumière
Karthus wins against Lux 44.78% of the time which is 5.04% lower against Lux than the average opponent.
After normalising both champions win rates Karthus wins against Lux 1.92% less often than would be expected.
The average opponent winrate against Lux is 49.82%.


Leona
Aube radieuse
Karthus wins against Leona 46.08% of the time which is 2.78% lower against Leona than the average opponent.
After normalising both champions win rates Karthus wins against Leona 0.33% more often than would be expected.
The average opponent winrate against Leona is 48.86%.


Morgana
Déchue
Karthus wins against Morgana 50.45% of the time which is 1.63% higher against Morgana than the average opponent.
After normalising both champions win rates Karthus wins against Morgana 4.74% more often than would be expected.
The average opponent winrate against Morgana is 48.82%.


Thresh
Garde aux chaînes
Karthus wins against Thresh 52.29% of the time which is 2.60% higher against Thresh than the average opponent.
After normalising both champions win rates Karthus wins against Thresh 5.72% more often than would be expected.
The average opponent winrate against Thresh is 49.69%.


Nautilus
Titan des profondeurs
Karthus wins against Nautilus 53.64% of the time which is 3.02% higher against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 6.14% more often than would be expected.
The average opponent winrate against Nautilus is 50.62%.