

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: 4,726,040
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
Karthus jungle on Patch 15.16 is the strongest counter to support champions of Senna, Pantheon & Neeko. While Karthus jungle is countered most by support champions of Leona, Lux & Nami. Below is a detailed breakdown of Karthus jungle counters against support champions with a minimum of 100 games.


Leona
the Radiant Dawn
Karthus wins against Leona 40.19% of the time which is 11.13% lower against Leona than the average opponent.
After normalising both champions win rates Karthus wins against Leona 1.96% less often than would be expected.
The average opponent winrate against Leona is 51.32%.


Lux
the Lady of Luminosity
Karthus wins against Lux 41.10% of the time which is 11.25% lower against Lux than the average opponent.
After normalising both champions win rates Karthus wins against Lux 2.08% less often than would be expected.
The average opponent winrate against Lux is 52.35%.


Nami
the Tidecaller
Karthus wins against Nami 41.32% of the time which is 10.58% lower against Nami than the average opponent.
After normalising both champions win rates Karthus wins against Nami 1.41% less often than would be expected.
The average opponent winrate against Nami is 51.90%.


Blitzcrank
the Great Steam Golem
Karthus wins against Blitzcrank 43.48% of the time which is 9.53% lower against Blitzcrank than the average opponent.
After normalising both champions win rates Karthus wins against Blitzcrank 0.36% less often than would be expected.
The average opponent winrate against Blitzcrank is 53.01%.


Yuumi
the Magical Cat
Karthus wins against Yuumi 43.61% of the time which is 14.21% lower against Yuumi than the average opponent.
After normalising both champions win rates Karthus wins against Yuumi 5.09% less often than would be expected.
The average opponent winrate against Yuumi is 57.82%.


Pyke
the Bloodharbor Ripper
Karthus wins against Pyke 43.67% of the time which is 11.51% lower against Pyke than the average opponent.
After normalising both champions win rates Karthus wins against Pyke 2.35% less often than would be expected.
The average opponent winrate against Pyke is 55.18%.


Brand
the Burning Vengeance
Karthus wins against Brand 44.07% of the time which is 7.88% lower against Brand than the average opponent.
After normalising both champions win rates Karthus wins against Brand 1.29% more often than would be expected.
The average opponent winrate against Brand is 51.95%.


Lulu
the Fae Sorceress
Karthus wins against Lulu 44.26% of the time which is 10.81% lower against Lulu than the average opponent.
After normalising both champions win rates Karthus wins against Lulu 1.65% less often than would be expected.
The average opponent winrate against Lulu is 55.07%.


Seraphine
the Starry-Eyed Songstress
Karthus wins against Seraphine 45.34% of the time which is 9.10% lower against Seraphine than the average opponent.
After normalising both champions win rates Karthus wins against Seraphine 0.07% more often than would be expected.
The average opponent winrate against Seraphine is 54.44%.


Nautilus
the Titan of the Depths
Karthus wins against Nautilus 45.57% of the time which is 7.86% lower against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 1.31% more often than would be expected.
The average opponent winrate against Nautilus is 53.43%.


Thresh
the Chain Warden
Karthus wins against Thresh 46.34% of the time which is 7.15% lower against Thresh than the average opponent.
After normalising both champions win rates Karthus wins against Thresh 2.02% more often than would be expected.
The average opponent winrate against Thresh is 53.49%.


Zyra
Rise of the Thorns
Karthus wins against Zyra 46.67% of the time which is 4.03% lower against Zyra than the average opponent.
After normalising both champions win rates Karthus wins against Zyra 5.14% more often than would be expected.
The average opponent winrate against Zyra is 50.70%.


Mel
the Soul's Reflection
Karthus wins against Mel 46.71% of the time which is 8.51% lower against Mel than the average opponent.
After normalising both champions win rates Karthus wins against Mel 0.65% more often than would be expected.
The average opponent winrate against Mel is 55.22%.


Morgana
the Fallen
Karthus wins against Morgana 46.98% of the time which is 4.99% lower against Morgana than the average opponent.
After normalising both champions win rates Karthus wins against Morgana 4.18% more often than would be expected.
The average opponent winrate against Morgana is 51.97%.


Xerath
the Magus Ascendant
Karthus wins against Xerath 47.27% of the time which is 5.26% lower against Xerath than the average opponent.
After normalising both champions win rates Karthus wins against Xerath 3.91% more often than would be expected.
The average opponent winrate against Xerath is 52.53%.


Neeko
the Curious Chameleon
Karthus wins against Neeko 47.48% of the time which is 6.67% lower against Neeko than the average opponent.
After normalising both champions win rates Karthus wins against Neeko 2.50% more often than would be expected.
The average opponent winrate against Neeko is 54.15%.


Pantheon
the Unbreakable Spear
Karthus wins against Pantheon 47.52% of the time which is 6.70% lower against Pantheon than the average opponent.
After normalising both champions win rates Karthus wins against Pantheon 2.47% more often than would be expected.
The average opponent winrate against Pantheon is 54.22%.


Senna
the Redeemer
Karthus wins against Senna 49.11% of the time which is 7.09% lower against Senna than the average opponent.
After normalising both champions win rates Karthus wins against Senna 2.06% more often than would be expected.
The average opponent winrate against Senna is 56.20%.