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.
The Karthus Yone synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Yone, 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 Yone. His KDA fell from NaN to NaN. This decrease shows that Yone helps Karthus perform worse in competitive League of Legends rounds. Yet, the small difference proves that this performance change is only marginal.
When Karthus is an ally to Yone, he observes a small increase in his complete damage output. This could indicate that Yone supports by providing cover for him to deal more damage or that his support also helps increase the match's duration. Similarly, when Karthus is played alongside Yone on the same side, he usually scores many fewer killing sprees than when he plays alone. This is contrasting evidence that he is worse when playing alongside Yone.
Moreover, when Karthus plays with Yone on the same side, he on average receives a little more damage than when he plays alone. Taking more damage could mean that Yone does a poor job of protecting Karthus in teamfights.
There is no one best champion pairing for Karthus that will no matter what be his #1 teammate. However, overall, Yone is a very typical teammate for Karthus. By playing on the same team as Karthus, he improves their win rate by 0.2% to 47.5%. This clearly indicates that there is only a small bond between Karthus and Yone that results in them performing at the top of their game together than without each other.
Yone has a greater difficulty than Karthus. That means you must be careful when enlisting Yone teammates to go into battle on the same side as, as they will require a greater level of skill to be able to fight well with you.
Playing alongside, you should observe an overall large increase in your team’s capability to deal magical damage. Combined, these champions are able to dish out a surprising amount of magic type damage.
Although, by pairing Karthus and Yone together, you may not be providing your other allies enough utility. Make sure to include other champions on your team that nullifies this relative disparity in their playstyle.
Regardless of your Yone ally's skill level, you should focus on maximizing your gold income, outlasting your enemies, and clearing objectives. If you heed this simple advice, you will do well anyway.
If you would like to learn all of the intricacies of Karthus to work well with Yone during both the lane and mid / late game phases of League matches, you should continue reading to pick up some more tricks and insights into this champion pairing. If you pay attention to the build and stats presented above, you will increase your win rate significantly.
The top items to use in your Karthus and Yone synergy build include Malignance, Cryptbloom, and Liandry's Torment. When Karthus included at least these three finished items in his build, he performed a lot better when fighting alongside Yone than with most other commonly used item sets. In fact, Karthus boasted an average win rate of 47.5% helping carry Yone with these items in his kit.
To have the best likelihood of vanquishing your oponents, you should use 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 rune builds players chose for this team composition, this combination of runes resulted in the highest win rate. In fact, these runes averaged a 47.5% win rate overall.
By default, tips, statistics, and builds on how to team up Yone with Karthus are given for all ranked divisions combined. To filter the statistics and builds to a specific rank, you can use the selection menu located earlier on the page.