

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: 6,024,906
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 Thresh, Bard & Lulu. While Karthus bottom is countered most by support champions of Milio, Nami & Soraka. Below is a detailed breakdown of Karthus bottom counters against support champions with a minimum of 100 games.


Milio
The Gentle Flame
Karthus wins against Milio 47.71% of the time which is 0.46% lower against Milio than the average opponent.
After normalising both champions win rates Karthus wins against Milio 3.59% less often than would be expected.
The average opponent winrate against Milio is 48.17%.


Nami
the Tidecaller
Karthus wins against Nami 50.00% of the time which is 1.69% higher against Nami than the average opponent.
After normalising both champions win rates Karthus wins against Nami 1.44% less often than would be expected.
The average opponent winrate against Nami is 48.31%.


Soraka
the Starchild
Karthus wins against Soraka 50.41% of the time which is 2.06% higher against Soraka than the average opponent.
After normalising both champions win rates Karthus wins against Soraka 1.07% less often than would be expected.
The average opponent winrate against Soraka is 48.35%.


Nautilus
the Titan of the Depths
Karthus wins against Nautilus 51.97% of the time which is 1.04% higher against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 2.09% less often than would be expected.
The average opponent winrate against Nautilus is 50.93%.


Karma
the Enlightened One
Karthus wins against Karma 53.73% of the time which is 3.42% higher against Karma than the average opponent.
After normalising both champions win rates Karthus wins against Karma 0.29% more often than would be expected.
The average opponent winrate against Karma is 50.31%.


Lulu
the Fae Sorceress
Karthus wins against Lulu 54.78% of the time which is 5.63% higher against Lulu than the average opponent.
After normalising both champions win rates Karthus wins against Lulu 2.50% more often than would be expected.
The average opponent winrate against Lulu is 49.15%.


Bard
the Wandering Caretaker
Karthus wins against Bard 56.00% of the time which is 6.95% higher against Bard than the average opponent.
After normalising both champions win rates Karthus wins against Bard 3.82% more often than would be expected.
The average opponent winrate against Bard is 49.05%.


Thresh
the Chain Warden
Karthus wins against Thresh 59.29% of the time which is 9.85% higher against Thresh than the average opponent.
After normalising both champions win rates Karthus wins against Thresh 6.72% more often than would be expected.
The average opponent winrate against Thresh is 49.44%.