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: 23,803,703
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 14.12 to determine the strongest support counters. A matchup requires a minimum of 100 games to be displayed.
Thresh
Strażnik Łańcuchów
Karthus wins against Thresh 44.12% of the time which is 3.94% lower against Thresh than the average opponent.
After normalising both champions win rates Karthus wins against Thresh 4.18% less often than would be expected.
The average opponent winrate against Threshis 48.06%.
Nami
Władczyni Przypływów
Karthus wins against Nami 50.45% of the time which is 3.45% higher against Nami than the average opponent.
After normalising both champions win rates Karthus wins against Nami 3.20% more often than would be expected.
The average opponent winrate against Namiis 47.00%.
Nautilus
Tytan Głębin
Karthus wins against Nautilus 50.46% of the time which is 1.46% higher against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 1.22% more often than would be expected.
The average opponent winrate against Nautilusis 49.00%.