Karthus vs Rengar Counter Build

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

How to Beat Rengar as Karthus

3,160 Karthus vs Rengar Matchups Analyzed

Win Rate


First Blood


Best Karthus Items to Counter Rengar

The ideal items to focus on in your Karthus versus Rengar build consist of Rabadon's Deathcap, Void Staff, and Liandry's Anguish. When Karthus bought at least these three pieces in his build, he performed a lot better when fighting Rengar than with most other commonly used builds.


7.6 | Karthus Rengar | 8.9


7.5 | Karthus Rengar | 6.9


9.1 | Karthus Rengar | 5.4

Best Karthus Runes to Counter Rengar

Dark Harvest Rune Dark Harvest
Cheap Shot Rune Cheap Shot
Eyeball Collection Rune Eyeball Collection
Ultimate Hunter Rune Ultimate Hunter
Presence of Mind Rune Presence of Mind
Last Stand Rune Last Stand
To have the highest chance of annihilating Rengar as Karthus, you should equip the Dark Harvest, Cheap Shot, Eyeball Collection, Ultimate Hunter, Presence of Mind, and Last Stand runes. Out of all the rune sets that we analyzed for Karthus vs Rengar fights, this composite of runes yielded the best win rate. We have also displayed the top Rengar runes to fend off Karthus in order to help you realize how he will likely be built against your champion.

Runes Rengar Will Likely Use to Counter Karthus

Grasp of the Undying Rune Grasp of the Undying
Demolish Rune Demolish
Second Wind Rune Second Wind
Revitalize Rune Revitalize
Taste of Blood Rune Taste of Blood
Ravenous Hunter Rune Ravenous Hunter

Karthus vs Rengar Counter Stats Summary

The stats provided here feature some strategic Karthus against Rengar matchup stats that may help us interpret the differences and similarities between the pair. As an example, Karthus’s KDA ratio ([kills + assists] / deaths) of 2.2 is nearly equal to Rengar’s ratio of 2.1, showing that Karthus may be just as central to his team's team fighting potential than Rengar.

Karthus often has a significant smaller longest killing spree than his opponent does. Commonly, Karthus takes less damage than Rengar. This is usually reflective of differing health capacities; however, it can also show that the one champion has less agility and thus is unable to escape additional damage when poked or engaged.

In Karthus vs Rengar matchups, Karthus typically gets a similar amount of CS than Rengar. Champions who on average don't get much CS typically don't need much CS to be useful. They are capable of scaling well off their abilities alone. Yet, champs with plenty of CS, such as hyper-carries, typically require a lot of gold to be useful. In either situation, try to exceed the averages displayed here to do well.

By default, Karthus vs Rengar tips, statistics, and build recommendations are displayed for all skill levels combined. To filter the statistics and builds to a distinct skill level, you should use the selection menu located earlier on the page.

Killing Spree

2.8 | Karthus Rengar | 3.6

Damage Dealt

27,391 | Karthus Rengar | 18,816

Damage Taken

23,870 | Karthus Rengar | 31,350

Gold Earned

11,935 | Karthus Rengar | 12,033

Minions Killed

77 | Karthus Rengar | 64


5.2 | Karthus Rengar | 5.6

Dragons Killed

1.9 | Karthus Rengar | 2.1

Barons Killed

0.4 | Karthus Rengar | 0.5


0.9 | Karthus Rengar | 1

Karthus vs Rengar Matchup Summary

We at MOBA Champion summarize millions of recently ranked League of Legends games every week. In our dataset, Karthus did battle with Rengar in 3,160 games. Having so many matchups for Karthus versus Rengar gives us a lot of faith in our capability to prepare enlightening statistics and a solid build to obliterate your opposition.

This counter matchup is relatively uncommon. Karthus is forced to battle against Rengar in only 9.6% of his games. Karthus has done a ok job of beating Rengar. On average, Karthus wins a acceptable 50.0% of games the champs face off with one another in. In Karthus versus Rengar matches, Karthus’s team is 6.0% less likely to obtain first blood. This implies that he probably won't get first blood versus Rengar.

How We Analyze Our Champion Counters

For this counter guide, we analyzed 3,160 Karthus vs Rengar 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 Rengar 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.