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How to Synergize Karthus with Zac on the Same TeamKarthus is in the b tier of champions

Karthus with Zac

How to Win With Karthus and Zac Paired TogetherKarthus is in the s tier of champions
Mage
TankFighter

How to Synergize Karthus and Zac

based on 609 Karthus with Zac pairs
Win Rate
50.7 %
K/D/A
2.2
Pick Rate
1.3 %

How We Analyze Champion Pairings in LoL

At MOBA Champion, we take in data from from millions of LoL games directly from Riot Games each week. Karthus has gone into battle with Zac in 609 recently played, ranked matches. By gathering so much accurate data directly from the publishers of LoL, we feel confident that we can showcase robust, accurate builds to help Karthus play with Zac. It is very rare for Karthus to play with Zac as teammates. This has only taken place in about 1.3% of games with Karthus.

Karthus Zac Synergy Summary

Karthus does a ok job of playing alongside Zac. On average, he wins an acceptable 50.7% of games the champions try and synergize their gameplay. If you want to win more matches as Karthus when playing alongside Zac by learning how to better synergize your playstyle with him, then check out the full build (with items, runes, summoner spells, and skills) below!

Best Karthus vs Zac Counter Build

Items

Starter Items

Time Target
Scorchclaw PupHealth Potion

Early Items

~5 Mins
BootsAmplifying Tome

Core Karthus Items

~22 Mins
Rabadon's DeathcapMalignanceShadowflame

Optional Items

Void StaffLiandry's TormentStormsurge

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 CollectionUltimate Hunter
PrecisionPresence of MindLast Stand
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 Synergizing Karthus and Zac

Tips for Playing as Karthus with Zac

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 Understand How Zac Will Play

Picking up goo chunks is very important to staying alive.

When Cell Division is ready, try to die in a position that makes it difficult for the enemy team to kill your bloblets.

Charging Elastic Slingshot from the fog of war will give opponents less time to react.

Karthus Zac Synergy Stats

Karthus Image
Win Rate
50.7 %
VS
Win Rate
49.3 %
Zac Image
7.6
< Kills >
7
7.9
< Deaths >
7.6
9.8
< Assists >
9.5
1.8
< Killing Sprees >
1.63
120
< Minions Killed >
88
0.58
< Dragons Killed >
0.89
0.33
< Inhibitors >
0.28
257
< Physical Damage >
246
30,570
< Magic Damage >
29,153
1,756
< True Damage >
2,031
32,584
< Damage Dealt >
31,430
27,308
< Damage Taken >
29,785
12,833
< Gold Earned >
12,799
1.34
< Towers >
1.08
0.16
< Baron Takedowns >
0.23
6,348
< Total Healing >
9,279
14,727
< Experience >
14,921
19
< Vision Score >
19
8
< Wards Placed >
7
204
< Time Dealing CC >
221

How to Play with Zac as Karthus in LoL

The Karthus Zac synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Zac, compared to his overall stats. Significant differences are areas of focus that highlight how his gameplay changes when paired with this other champion.

Overall, Karthus sees a very large drop in his KDA (ratio of kills and assists to deaths) when paired with Zac. His KDA went down from NaN to NaN. This worsening shows that Zac helps Karthus perform worse in ranked League of Legends rounds. Yet, the small difference demonstrates that this performance change is only marginal.

When Karthus is an ally to Zac, he observes a small increase in his complete damage dealt. This could signal that Zac supports by providing protection for him to dish out more damage or that his support also helps extend the game's duration. Similarly, when Karthus is played with Zac on the same side, he usually scores many fewer killing sprees compared to when he plays alone. This is contrasting evidence that he is worse when playing synergisticly with Zac.

Additionally, when Karthus plays with Zac on the same side, he usually takes less damage than when he plays alone. Taking not as much damage could indicate that Zac does a decent job of protecting Karthus in team fights.

Synergies between Karthus and Zac

Damage Types Compared

Karthus
Zac
Physical Damage
Magic Damage
True Damage

Champion Playstyles Contrasted

Karthus
Zac

Is Karthus better when played alongside Zac?

There is no universally accepted best ally for Karthus that will no matter what be his ideal teammate. Yet, overall, Zac is a superb teammate for Karthus. By playing on the same team as Karthus, he raises their win rate by 3.4% to 50.7%. This proves that there is a very strong bond between Karthus and Zac that allows them to perform at the top of their game together than alone.

Zac has a greater difficulty than Karthus. That means you need to be cautious when enlisting Zac teammates to fight alongside, as they will need a greater level of skill to fight well with you.

When playing on the same side, you should observe an overall large increase in your team’s capability to deal magical damage. Combined, these two can deal quite a lot of AP type damage.

Although, by bringing Karthus and Zac together, you probably will not be granting your team enough attack damage. Plan to bring other champions on your team that nullifies this disparity in this pairing's capabilities.

Regardless of the ability of your Zac ally, you should focus on maximizing your gold income, warding to avoid ambushes, and taking down objectives. If you do this, you will do well anyway.

Additional Information for Karthus Players

How We Calculated Our Karthus Zac Synergy Build and Stats

For this guide on pairing Karthus and Zac, we analyzed 609 ranked and recent League of Legends matches. We perform advanced data cleaning and statistical methods to guarantee that our team synergy stats are accurate and reliable. You can be confident that our recommended build to pair Karthus with Zac comes from actual 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 your division's most relevant stats and build.

Other Useful Resources

Further Insights to Win with this Champion Pairing

To learn all of the intricacies of Karthus in order to synergize with Zac during both the lane and mid / late game phases of LoL games, you should keep reading to learn some more tips and tricks for this champion pairing. If you pay attention to the build and stats displayed above, you will increase your win rate by a lot.

The most crucial finished items to get in your Karthus and Zac synergy build consist of Rabadon's Deathcap, Malignance, and Shadowflame. When Karthus used at least these three pieces in his build, he did significantly better as an ally of Zac than with many other commonly used builds. In fact, Karthus had an average win rate of 50.7% helping carry Zac with these items in his kit.

To have the best chance of beating your oponents, you should take the Dark Harvest, Cheap Shot, Eyeball Collection, Ultimate Hunter, Presence of Mind, and Last Stand runes from the Domination and Precision rune sets. Of all the runes players chose for this champion pairing, this mix of runes resulted in the top win rate. Notably, these runes gave a 50.7% winrate overall.

If you would like to view Karthus with Zac synergy tips and builds for a a distinct rank, feel free to select one from the selection menu provided above. If viewing for the first time, the statistics and strategies shown are calculated using every round finished with both champs.