How to Win Karthus vs Janna Counter Matchup Karthus is in the b tier of champions

Karthus vs Janna

How to Beat Janna as Karthus in LoL Janna is in the s tier of champions
Mage
Support Mage

How to Beat Janna as Karthus

based on 938 Karthus vs Janna matchups
Win Rate
45.4 %
K/D/A
2.21
Pick Rate
2.6 %

How We Analyze LoL Champion Counters

We produce our counter statistics from the millions of ranked LoL matches that we get from Riot Games every week. Our guide on how to beat Janna as Karthus resulted from an evaluation of 938 ranked games where both champions opposed one another. This particular counter matchup is relatively rare. Karthus has to counter Janna in only 2.6% of his matches.

Karthus vs Janna Matchup Summary

Unfortunately, Karthus does a terrible job of beating Janna. Typically, he wins a lowly 45.4% of games the champs fight one another in. In Karthus against Janna matches, Karthus’s team is 0.0% more probable to get first blood, indicating that he probably will get first blood against Janna.

Best Karthus vs Janna Counter Build

Items

Starter Items

Time Target
EmberknifeRefillable Potion

Early Items

~5 Mins
BootsLost Chapter

Core Karthus Items

~22 Mins
Liandry's AnguishVoid StaffShadowflame

Optional Items

MorellonomiconRabadon's DeathcapZhonya's Hourglass

Summoner Spells

summonerexhaust summoner spell D
summonerflash summoner spell F

Skill Order

First skill for Karthus to level up q
>
Second ability for Karthus to level up e
>
Last skill for Karthus to max out w

Runes

Domination Dark Harvest Cheap ShotEyeball CollectionTreasure Hunter
Precision Presence of MindLast Stand
Adaptive Adaptive Armor
Karthus's passive ability p
Karthus q ability q
Karthus w ability w
Karthus 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 Janna as Karthus

Tips for Playing as Karthus against Janna

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 Janna

Save an interrupt ability for when Janna uses her ultimate.

Listen for the charge up sound on Howling Gale in case Janna is trying to hit you with it from off screen or from brush.

Janna's at her strongest when buffing another ally. If you can harass her ally, it will weaken her ability to fight you.

Karthus vs Janna Counter Stats

Karthus Image
Win Rate
45.4 %
VS
Win Rate
54.6 %
Janna Image
6.5
< Kills >
1
6.7
< Deaths >
4.6
8.3
< Assists >
14.7
1.52
< Killing Sprees >
0.14
101
< Minions Killed >
16
0.74
< Dragons Killed >
0.04
0.26
< Inhibitors >
0.57
263
< Physical Damage >
788
28,280
< Magic Damage >
3,687
1,655
< True Damage >
388
30,199
< Damage Dealt >
4,864
23,743
< Damage Taken >
16,209
12,136
< Gold Earned >
7,584
1.23
< Towers >
2.12
0.17
< Baron Takedowns >
0
4,617
< Total Healing >
9,553
13,749
< Experience >
10,398
18
< Vision Score >
50
6
< Wards Placed >
23
190
< Time Dealing CC >
244

How to Counter Janna with Karthus in LoL

The stat comparisons shown here underscore several influential Karthus vs. Janna counter statistics that can help us explain the differences and similarities between the pair. As an example, Karthus’s KDA ratio ([kills + assists] / deaths) of NaN is better than Janna’s KDA ratio of NaN, indicating that Karthus may be more central to his team's team fighting effectiveness than Janna. This observation is in large part caused by the differences in killsdeaths.

Karthus typically has a much larger longest killing spree than his enemy does. Typically, he takes more damage than Janna. This typically indicates differing health capacities, yet it can also hint that the champion with increased HP has less mobility and thus is not able to kite away from further damage when engaged or poked.

Differences between Karthus and Janna

Damage Types Compared

Karthus
Janna
Physical Damage
Magic Damage
True Damage

Champion Playstyles Compared

Karthus
Janna

Who is Better, Karthus or Janna?

Both League of Legends champs are great champions. Both champs have their strengths, weaknesses, and counters. In League's current meta, Karthus usually loses when playing against Janna, with a 45.4% win rate. Thus, Karthus makes a bad counter to Janna.

While Karthus does have a much lower win rate compared to Janna, when on opposite teams, Karthus also has a greater difficulty level that makes him a more difficult character to pick up and master. You may get destroyed when picking Karthus into Jannaas his relative depth means that you may not be able to reach his full potential without a significant amount of practice beforehand.

Furthermore, Karthus also has some amount of utility and CC, a similar amount to Janna. This makes her just as valuable during teamfights, especially when facing champions with a ton of burst damage.

While there is not a single best champion in League of Legends, in Karthus vs Janna matchups, Janna is the better champion with a much lower win rate, similar champion depth, and a similar amount of utility to help out your allies during late stage team fights.

Karthus is a terribly counter for Janna. You will do well by focussing your tactics on keeping up your gold income and clearing objectives. If you can do that, you should be able to stand on your own as Karthus against Janna.

Additional Information for Karthus Players

How We Calculated Our Karthus vs Janna Build and Stats

For this guide on countering Janna as Karthus, we analyzed 938 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 Janna 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

Further Insights to Win this Matchup

To learn all of the intricacies of Karthus in order to counter Janna during both the lane and mid / late game phases of League of Legends, you should keep reading to gather a few extra lessons on this matchup. If you listen to the build and stats presented here, you will grow your win rate significantly and be that much closer to League of Legends pro players.

Karthus on average accumulates much more CS as Janna. Champs who typically don't acquire much CS often don't have to have much CS to be effective, such as supports. They are capable of scaling properly off of their abilities and first items alone. Yet, champs with a lot of CS, such as hyper-carries, often have to have a lot of items to be effective. In either case, try to do better than the values displayed here to do well.

The most crucial items to focus on in your Karthus versus Janna build consist of Liandry's Anguish, Void Staff, and Shadowflame. When Karthus used at least these three items in his build, he performed significantly better when fighting Janna than with many other common counter builds. In fact, Karthus had an average win rate of 45.4% when countering Janna with these items in his kit.

To have the greatest chance of beating Janna as Karthus, Karthus players should use the Dark Harvest, Cheap Shot, Eyeball Collection, Treasure Hunter, Presence of Mind, and Last Stand runes from the Domination and Precision rune sets. Of all the rune builds players picked for Karthus vs Janna matchups, this sequence of runes resulted in the best win rate. Moreover, these runes provided a 45.4% win rate overall.

If you need to get Karthus x Janna tips and counter builds for a an individual skill level, please choose one from the selection menu displayed above. If viewing for the first time, the stats and guides displayed are calculated using all rounds played with these champs.