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.
Platinum+ Champions Analysed: 52,076,797
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
Presently there is insufficent games played by Karthus support on Patch 14.5 to determine the strongest support counters. A matchup requires a minimum of 100 games to be displayed.
Janna
a Fúria da Tormenta
Karthus wins against Janna 45.59% of the time which is 0.78% lower against Janna than the average opponent.
After normalising both champions win rates Karthus wins against Janna 2.21% less often than would be expected.
The average opponent winrate against Jannais 46.37%.
Senna
A Redentora
Karthus wins against Senna 46.36% of the time which is 2.37% lower against Senna than the average opponent.
After normalising both champions win rates Karthus wins against Senna 3.80% less often than would be expected.
The average opponent winrate against Sennais 48.73%.
Lux
a Dama da Luz
Karthus wins against Lux 48.03% of the time which is 0.66% lower against Lux than the average opponent.
After normalising both champions win rates Karthus wins against Lux 2.09% less often than would be expected.
The average opponent winrate against Luxis 48.69%.
Nautilus
o Titã das Profundezas
Karthus wins against Nautilus 54.13% of the time which is 3.73% higher against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 2.30% more often than would be expected.
The average opponent winrate against Nautilusis 50.40%.
Thresh
o Guardião das Correntes
Karthus wins against Thresh 54.78% of the time which is 5.50% higher against Thresh than the average opponent.
After normalising both champions win rates Karthus wins against Thresh 4.07% more often than would be expected.
The average opponent winrate against Threshis 49.28%.