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: 31,997,197
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 top vs support Counters
Presently there is insufficent games played by Karthus top on Patch 14.3 to determine the strongest support counters. A matchup requires a minimum of 100 games to be displayed.
Maokai
der verdorbene Baumriese
Karthus wins against Maokai 47.40% of the time which is 4.31% higher against Maokai than the average opponent.
After normalising both champions win rates Karthus wins against Maokai 2.75% more often than would be expected.
The average opponent winrate against Maokaiis 43.09%.
Janna
die Wut des Sturms
Karthus wins against Janna 50.50% of the time which is 4.57% higher against Janna than the average opponent.
After normalising both champions win rates Karthus wins against Janna 3.02% more often than would be expected.
The average opponent winrate against Jannais 45.93%.
Senna
die Erlöserin
Karthus wins against Senna 50.70% of the time which is 3.46% higher against Senna than the average opponent.
After normalising both champions win rates Karthus wins against Senna 1.91% more often than would be expected.
The average opponent winrate against Sennais 47.24%.
Nautilus
der Titan der Tiefen
Karthus wins against Nautilus 52.88% of the time which is 3.12% higher against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 1.57% more often than would be expected.
The average opponent winrate against Nautilusis 49.76%.
Karma
die Erleuchtete
Karthus wins against Karma 59.82% of the time which is 9.66% higher against Karma than the average opponent.
After normalising both champions win rates Karthus wins against Karma 8.11% more often than would be expected.
The average opponent winrate against Karmais 50.16%.