

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: 7,623,331
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 bottom vs support Counters
Karthus bottom on Patch 7 is the strongest counter to support champions of Lulu, Nautilus & Thresh. While Karthus bottom is countered most by support champions of Bard, Milio & Karma. Below is a detailed breakdown of Karthus bottom counters against support champions with a minimum of 100 games.


Bard
the Wandering Caretaker
Karthus wins against Bard 43.40% of the time which is 4.14% lower against Bard than the average opponent.
After normalising both champions win rates Karthus wins against Bard 6.92% less often than would be expected.
The average opponent winrate against Bard is 47.54%.


Milio
The Gentle Flame
Karthus wins against Milio 43.55% of the time which is 3.83% lower against Milio than the average opponent.
After normalising both champions win rates Karthus wins against Milio 6.61% less often than would be expected.
The average opponent winrate against Milio is 47.38%.


Karma
the Enlightened One
Karthus wins against Karma 45.22% of the time which is 4.87% lower against Karma than the average opponent.
After normalising both champions win rates Karthus wins against Karma 7.65% less often than would be expected.
The average opponent winrate against Karma is 50.09%.


Rell
the Iron Maiden
Karthus wins against Rell 47.79% of the time which is 0.59% lower against Rell than the average opponent.
After normalising both champions win rates Karthus wins against Rell 3.37% less often than would be expected.
The average opponent winrate against Rell is 48.38%.


Janna
the Storm's Fury
Karthus wins against Janna 49.17% of the time which is 1.70% higher against Janna than the average opponent.
After normalising both champions win rates Karthus wins against Janna 1.08% less often than would be expected.
The average opponent winrate against Janna is 47.47%.


Braum
the Heart of the Freljord
Karthus wins against Braum 50.00% of the time which is 2.84% higher against Braum than the average opponent.
After normalising both champions win rates Karthus wins against Braum 0.06% more often than would be expected.
The average opponent winrate against Braum is 47.16%.


Nami
the Tidecaller
Karthus wins against Nami 50.00% of the time which is 2.76% higher against Nami than the average opponent.
After normalising both champions win rates Karthus wins against Nami 0.02% less often than would be expected.
The average opponent winrate against Nami is 47.24%.


Soraka
the Starchild
Karthus wins against Soraka 52.38% of the time which is 5.10% higher against Soraka than the average opponent.
After normalising both champions win rates Karthus wins against Soraka 2.32% more often than would be expected.
The average opponent winrate against Soraka is 47.28%.


Thresh
the Chain Warden
Karthus wins against Thresh 55.97% of the time which is 7.73% higher against Thresh than the average opponent.
After normalising both champions win rates Karthus wins against Thresh 4.95% more often than would be expected.
The average opponent winrate against Thresh is 48.24%.


Nautilus
the Titan of the Depths
Karthus wins against Nautilus 57.89% of the time which is 8.03% higher against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 5.25% more often than would be expected.
The average opponent winrate against Nautilus is 49.86%.


Lulu
the Fae Sorceress
Karthus wins against Lulu 58.43% of the time which is 10.37% higher against Lulu than the average opponent.
After normalising both champions win rates Karthus wins against Lulu 7.59% more often than would be expected.
The average opponent winrate against Lulu is 48.06%.