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 jungle Counters
Presently there is insufficent games played by Karthus top on Patch 14.3 to determine the strongest jungle counters. A matchup requires a minimum of 100 games to be displayed.
Nidalee
the Bestial Huntress
Karthus wins against Nidalee 39.60% of the time which is 6.77% lower against Nidalee than the average opponent.
After normalising both champions win rates Karthus wins against Nidalee 8.32% less often than would be expected.
The average opponent winrate against Nidaleeis 46.37%.
Graves
the Outlaw
Karthus wins against Graves 44.53% of the time which is 4.80% lower against Graves than the average opponent.
After normalising both champions win rates Karthus wins against Graves 6.35% less often than would be expected.
The average opponent winrate against Gravesis 49.33%.
Brand
the Burning Vengeance
Karthus wins against Brand 46.60% of the time which is 0.16% lower against Brand than the average opponent.
After normalising both champions win rates Karthus wins against Brand 1.71% less often than would be expected.
The average opponent winrate against Brandis 46.76%.
Viego
The Ruined King
Karthus wins against Viego 48.82% of the time which is 1.29% higher against Viego than the average opponent.
After normalising both champions win rates Karthus wins against Viego 0.26% less often than would be expected.
The average opponent winrate against Viegois 47.53%.
Lee Sin
the Blind Monk
Karthus wins against Lee Sin 53.11% of the time which is 3.62% higher against Lee Sin than the average opponent.
After normalising both champions win rates Karthus wins against Lee Sin 2.07% more often than would be expected.
The average opponent winrate against Lee Sinis 49.49%.