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.
Hawkshot reveals units in brush. If a team fight is occuring in the jungle it can give you a significant advantage.
Volley arrows are blocked by the first enemy they hit, so keep your distance to avoid having them all absorbed by enemy frontliners.
Try to fire Enchanted Crystal Arrow in the same direction enemies are moving, so it is more likely to hit.
The Karthus Ashe synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Ashe, 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 large worsening in his KDA (ratio of kills and assists to deaths) when paired with Ashe. His KDA decreased from NaN to NaN. This negative change shows that Ashe helps Karthus perform worse in competitive League rounds. Yet, the small difference demonstrates that this performance change is not very impactful.
When Karthus is paired with Ashe, he gets a small increase in his complete damage dealt. This may demonstrate that Ashe helps provide cover for him to dish out more damage or that her presence on the team also helps increase the match's duration. Similarly, when Karthus is played alongside Ashe on the same side, he usually scores many fewer killing sprees than when he plays without Ashe. This is contrasting evidence that he is worse when playing synergisticly with Ashe.
Additionally, when Karthus plays with Ashe on the same team, he on average receives a little more damage than when he fights alone. Receiving more damage could indicate that Ashe does a poor job of covering Karthus in team fights.
There is no universally accepted best synergy for Karthus that will always be his best ally. However, overall, Ashe is a very typical teammate for Karthus. By locking into the same team as Karthus, she lowers their win rate by -0.2% to 47.1%. This shows that there is not really a strong bond between Karthus and Ashe that allows them to perform worse together than alone.
Ashe has a much lower diffuclty than Karthus. That means you don't need to be very careful when lining up Ashe teammates to play with, as they will need a much lower level of skill to be able to do well with you.
Playing cooperatively, Karthus players should witness an overall large increase in your team’s capability to deal magical damage. Combined, these champions can blast through enemies with magic damage.
In contrast, by pairing Karthus and Ashe together, you will not be granting your other allies much protection for burst damage. Make sure to have other champions on your team that fills this hole in this pairing's kit.
Regardless of your Ashe ally's skill level, you need to focus on increasing your gold income, warding to avoid ambushes, and taking down objectives. If you do this, you will do well, regardless.
To learn all of the intricacies of Karthus in order to pair well with Ashe during both the early game and mid / late game phases of League of Legends rounds, you should continue reading to gather additional tricks and insights into this champion pairing. If you listen to the build and suggestions displayed here, you should increase your win rate significantly.
The most important items to build first in your Karthus and Ashe synergy build include Rabadon's Deathcap, Shadowflame, and Stormsurge. When Karthus bought at least these three finished items in his build, he did much better as an ally of Ashe than with most other commonly used item sets. In fact, Karthus boasted an average win rate of 47.1% helping carry Ashe with these items in his kit.
To have the best probability of coming out on top against your oponents, Karthus players should take the Dark Harvest, Cheap Shot, Eyeball Collection, Ultimate Hunter, Gathering Storm, and Transcendence runes from the Domination and Sorcery rune sets. Out of all the runes we have analyed for Karthus and Ashe pairings, this set of runes resulted in the top win rate. Moreover, these runes averaged a 47.1% win rate overall.
If you would like to view Karthus with Ashe synergy tips and builds for a a particular player tier, please choose one from the selection menu shown above. If viewing for the first time, the stats and strategies shown are calculated using all rounds with data with these champs.