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How to Win Karthus vs Jax Counter MatchupKarthus is in the b tier of champions

Karthus vs Jax

How to Beat Jax as Karthus in LoLKarthus is in the a tier of champions
Mage
FighterAssassin

How to Beat Jax as Karthus

based on 3,256 Karthus vs Jax matchups
Win Rate
48 %
K/D/A
2.19
Pick Rate
6.7 %

How We Analyze LoL Champion Counters

We get our counter statistics from the millions of rated League games that we review each week. This guide on how to beat Jax as Karthus came out of an examination of 3256 ranked rounds where both champs faced one another. This particular counter matchup is fairly uncommon. Karthus fights Jax in only 6.7% of his rounds.

Karthus vs Jax Matchup Summary

Unfortunately, Karthus has done a dismal job of countering Jax. Normally, he wins a lowly 48.0% of matches the champions face one another in. In Karthus vs Jax games, Karthus’s team is 0.1% less probable to gain first blood. This indicates that he most likely won't be able to get first blood against Jax.

Best Karthus vs Jax Counter Build

Items

Starter Items

Time Target
Doran's RingHealth Potion

Early Items

~5 Mins
BootsLost Chapter

Core Karthus Items

~22 Mins
Rabadon's DeathcapMalignanceZhonya's Hourglass

Optional Items

StormsurgeShadowflameVoid StaffSeraph's Embrace

Summoner Spells

summonerexhaust summoner spell D
summonerflash summoner spell F

Skill Order

First skill for Karthus to level upq
>
Second ability for Karthus to level upe
>
Last skill for Karthus to max outw

Runes

DominationDark HarvestCheap ShotEyeball CollectionTreasure Hunter
PrecisionPresence of MindCoup de Grace
Adaptive ForceAdaptive ForceArmor
Karthus's passive ability p
Karthus's q ability q
Karthus's w ability w
Karthus's e ability e
Karthus's ultimate ability r
1
Q
2
E
3
Q
4
W
5
Q
6
R
7
Q
8
E
9
Q
10
E
11
R
12
E
13
E
14
W
15
W
16
R

Guide to Countering Jax as Karthus

Tips for Playing as Karthus against Jax

Lay Waste is very strong at farming minions and harassing enemy champions.

Ask your allies to help point out when you should use Requiem to get kills in different lanes.

Advice to Win Against Jax

Try to engage him in short bursts instead of going toe-to-toe with him. Preventing him from attacking consecutively drastically lowers his damage output.

Jax can dodge all incoming attacks for a very short amount of time and stuns enemies in melee range when it ends. Wait to strike him until after his dodge is finished.

Karthus vs Jax Counter Stats

Karthus Image
Win Rate
48 %
VS
Win Rate
52 %
Jax Image
7.3
< Kills >
7.2
7.8
< Deaths >
6.8
9.8
< Assists >
5.5
1.69
< Killing Sprees >
1.66
89
< Minions Killed >
130
0.91
< Dragons Killed >
0.68
0.29
< Inhibitors >
0.53
234
< Physical Damage >
12,846
30,089
< Magic Damage >
8,321
2,136
< True Damage >
665
32,460
< Damage Dealt >
21,832
30,251
< Damage Taken >
33,717
13,055
< Gold Earned >
12,772
1.09
< Towers >
2.21
0.24
< Baron Takedowns >
0.17
9,331
< Total Healing >
9,906
15,236
< Experience >
15,606
20
< Vision Score >
20
7
< Wards Placed >
9
225
< Time Dealing CC >
201

How to Counter Jax with Karthus in LoL

The stat comparisons provided here clarify some strategic Karthus vs. Jax matchup statistics that can help us explain the distinctions between this pair of champs. For instance, Karthus’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Jax’s KDA ratio of NaN, indicating that Karthus may be more central to his team's team fighting capacity than Jax. This observation is in large part caused by the differences in assists.

Karthus usually has a similar longest killing spree as his opponent does. Typically, he receives less damage than Jax. This often reflects different amounts of tankyness, yet it can also indicate that the one champ has less agility and thus is unable to escape further harm when poked or engaged.

Differences between Karthus and Jax

Damage Types Compared

Karthus
Jax
Physical Damage
Magic Damage
True Damage

Champion Playstyles Compared

Karthus
Jax

Who is Better, Karthus or Jax?

Both League champions are great. Both have their strengths, weaknesses, and counters. In League's current meta, Karthus usually loses when playing against Jax, with a 48.0% win rate. Therefore, Karthus makes a bad counter to Jax.

While Karthus does have a lower win rate than Jax, when on opposite teams, Karthus also has a greater difficulty level that makes him a more complex character to pick up and master. You should expect to face a difficult match when picking Karthus into Jaxas his relative depth means you may not be able to reach his full potential without a significant amount of practice beforehand.

Furthermore, Karthus has some amount of utility and CC, a similar amount to Jax. This makes her just as valuable during teamfights, especially when trying to counter champions with a lot of burst damage.

While there is not a single best champion overall in League of Legends, in Karthus vs Jax matchups, Jax is the better champion with a lower win rate, more champion depth, and a similar amount of utility to help out your team members during teamfights.

Karthus is a trash counter to Jax. Make sure you focus your tactics on keeping up your CS and clearing objectives. If you do that, you should hold your own as Karthus against Jax.

Other Champion Matchups Against Karthus

Karthus Loses Against

TaricTaric41.5% winrateMilioMilio42% winrateTahm KenchTahm Kench42.1% winrateJannaJanna42.2% winrate

Karthus Wins Against

ZeriZeri52.8% winrateLissandraLissandra52.2% winrateZoeZoe51.9% winrateLuluLulu51.9% winrate

Top Synergies by Role

BriarBriar+ 51.6% 926 GamesTristanaTristana+ 52% 1608 GamesRammusRammus+ 52.9% 346 GamesKledKled+ 52.9% 681 Games

Additional Information for Karthus Players

How We Calculated Our Karthus vs Jax Build and Stats

For this guide on countering Jax as Karthus, we analyzed 3,256 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 Jax 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.

Other Useful Resources

Karthus Build Jax Build

Further Insights to Win this Matchup

To truly master Karthus in order to counter Jax during both the early game and mid / late game phases of League of Legends, you should keep reading to gather a few extra tricks and insights into this matchup. If you listen to the build and suggestions shown here, you should increase your win rate significantly and be that much closer to League of Legends pro players.

Karthus typically accumulates a similar amount of CS relative to Jax. Champions who typically don't acquire much CS typically don't require much CS to be valuable teammates, such as sup champs. They are able to scale properly off of their abilities and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, often need many items to be effective. In either situation, try to do better than the values reported on this page to do well.

The ideal items to focus on in your Karthus versus Jax build include Rabadon's Deathcap, Malignance, and Zhonya's Hourglass. When Karthus included at least these three pieces in his build, he did much better when facing Jax than with most other commonly used counter builds. In fact, Karthus boasted an average winrate of 48.0% when countering Jax with this build.

To have the highest likelihood of beating Jax as Karthus, you should equip the Dark Harvest, Cheap Shot, Eyeball Collection, Treasure Hunter, Coup de Grace, and Presence of Mind runes from the Domination and Precision rune sets. Out of all the rune sets players used for Karthus vs Jax counters, this blending of runes yielded the best win rate. In fact, these runes gave a 48.0% win rate overall.

By default, tips, statistics, and builds on how to beat Jax as Karthus are shown for all ranked divisions combined. To scope the statistics and builds to an individual division, you should use the selection menu at the top of this page.