Karthus vs Mordekaiser Counter Build

How to Win Karthus vs Mordekaiser Counter Matchup vs How to Beat Mordekaiser as Karthus in LoL

How to Beat Mordekaiser as Karthus

6,074 Karthus vs Mordekaiser Matchups Analyzed

Win Rate


First Blood


Best Karthus Items to Counter Mordekaiser

The most important items to use in your Karthus versus Mordekaiser build include Rabadon's Deathcap, Void Staff, and Zhonya's Hourglass. When Karthus included at least these three items in his build, he did significantly better when facing Mordekaiser than with most other commonly used item sets.


7.6 | Karthus Mordekaiser | 7.2


7.6 | Karthus Mordekaiser | 6.3


9.4 | Karthus Mordekaiser | 4.7

Best Karthus Runes to Counter Mordekaiser

Dark Harvest Rune Dark Harvest
Taste of Blood Rune Taste of Blood
Eyeball Collection Rune Eyeball Collection
Ravenous Hunter Rune Ravenous Hunter
Presence of Mind Rune Presence of Mind
Coup de Grace Rune Coup de Grace
To have the best chance of crushing Mordekaiser as Karthus, Karthus players should equip the Dark Harvest, Taste of Blood, Eyeball Collection, Ravenous Hunter, Presence of Mind, and Coup de Grace runes. Of all the runes we have analyed for Karthus vs Mordekaiser clashes, this mix of runes yielded the greatest win rate. We have also included the top Mordekaiser runes to fend off Karthus in order to help you realize how he will probably be played against your champ.

Runes Mordekaiser Will Likely Use to Counter Karthus

Conqueror Rune Conqueror
Triumph Rune Triumph
Legend: Alacrity Rune Legend: Alacrity
Last Stand Rune Last Stand
Bone Plating Rune Bone Plating
Revitalize Rune Revitalize

Karthus vs Mordekaiser Counter Stats Summary

The stats provided here feature some important Karthus against Mordekaiser counter stats that can help us figure out the distinctions between the two. As an example, Karthus’s KDA ratio ([kills + assists] / deaths) of 2.2 is greater than Mordekaiser’s KDA ratio of 1.9, showing that Karthus may be more central to his team's team fighting capacity than Mordekaiser. This observation is largely caused by the differences in assists.

Karthus often has a slightly smaller longest kill spree than his opponent does. On average, Karthus takes less damage than Mordekaiser. This typically indicates different amounts of tankyness, but it can also show that the champ with more HP has less agility and thus is not able to kite away from further harm when engaged or poked.

Karthus often earns many fewer minion kills than Mordekaiser. Champions who on average do not amass very much CS usually do not require much CS to be effective. Instead, they are able to scale fully off of their abilities alone. However, champions with large amounts of CS, such as carries, typically have to have a lot of gold to be effective. In either situation, work to best the averages presented here to do well.

By default, Karthus vs Mordekaiser tips, stats, and build recommendations are presented for all ranked divisions. To scope the statistics and builds to a distinct player tier, you should use the selection menu above.

Killing Spree

2.8 | Karthus Mordekaiser | 3.1

Damage Dealt

28,214 | Karthus Mordekaiser | 19,826

Damage Taken

23,684 | Karthus Mordekaiser | 29,911

Gold Earned

11,842 | Karthus Mordekaiser | 11,275

Minions Killed

77 | Karthus Mordekaiser | 131


5.2 | Karthus Mordekaiser | 5.5

Dragons Killed

1.8 | Karthus Mordekaiser | 2.2

Barons Killed

0.4 | Karthus Mordekaiser | 0.5


0.9 | Karthus Mordekaiser | 1

Karthus vs Mordekaiser Matchup Summary

We at MOBA Champion analyze millions of recently ranked LoL games each week. Within our database, Karthus engaged Mordekaiser in 6,074 matches. Including so many matchups for Karthus vs Mordekaiser provides us a lot of confidence in our capacity to prepare informative statistics and a supported build to suppress your foe.

This matchup is somewhat common. Karthus has to counter Mordekaiser in 18.5% of his matches. Karthus has done a average job of beating Mordekaiser. Typically, he wins a acceptable 50.0% of games the champions oppose one another in. In Karthus against Mordekaiser matches, Karthus’s side is 2.0% less probable to get first blood, indicating that he most likely won't get first blood against Mordekaiser.

How We Analyze Our Champion Counters

For this counter guide, we analyzed 6,074 Karthus vs Mordekaiser matchups from recent LoL games. We use rigorous data cleaning and processing methods to ensure that our counter stats are of the highest quality. You can rest assured that the recommended build to counter Mordekaiser as Karthus comes from real data and is not the fabrication of some random LoL player, as some other sites provide. You can use the filters at the top of the page to view the most relevant stats and items to your rank.