

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.
Iron Champions Analysed: 2,704,457
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 jungle vs support Counters
Presently there is insufficent games played by Karthus jungle on Patch 15.17 to determine the strongest support counters. A matchup requires a minimum of 100 games to be displayed.


Morgana
la Caída
Karthus wins against Morgana 42.22% of the time which is 7.76% lower against Morgana than the average opponent.
After normalising both champions win rates Karthus wins against Morgana 2.26% less often than would be expected.
The average opponent winrate against Morgana is 49.98%.


Lux
La Dama Luminosa
Karthus wins against Lux 43.85% of the time which is 7.38% lower against Lux than the average opponent.
After normalising both champions win rates Karthus wins against Lux 1.88% less often than would be expected.
The average opponent winrate against Lux is 51.23%.


Nautilus
El Titán Abisal
Karthus wins against Nautilus 55.47% of the time which is 3.01% higher against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 8.51% more often than would be expected.
The average opponent winrate against Nautilus is 52.46%.


Seraphine
la Cantante Soñadora
Karthus wins against Seraphine 57.50% of the time which is 4.63% higher against Seraphine than the average opponent.
After normalising both champions win rates Karthus wins against Seraphine 10.13% more often than would be expected.
The average opponent winrate against Seraphine is 52.87%.