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.
Devastating Charge deals more damage based on the distance traveled. Try using Onslaught of Shadows or Summoner Spells such as Ghost or Flash to maximize this damage.
Spirit of Dread restores Health when nearby enemies take damage, including damage dealt by allies. Cast this during a large fight to maximize Hecarim's survivability.
The Karthus Hecarim synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Hecarim, 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 Hecarim. His KDA worsened from NaN to NaN. This worsening shows that Hecarim helps Karthus perform not as well in competitive League matches. Yet, the small difference shows that this performance change is not very impactful.
When Karthus tries to synergize with Hecarim, he observes a small decrease in his complete damage dealt. This difference could signal that Hecarim does not help protection for him to deal more damage or that his presence on the team also helps increase the round's duration. Similarly, when Karthus is played alongside Hecarim on the same team, he usually scores many fewer killing sprees than when he plays alone. This is contrasting evidence that he is worse when playing alongside Hecarim.
Moreover, when Karthus plays with Hecarim on the same side, he often receives much less damage than when he plays alone. Receiving not as much damage may indicate that Hecarim does a decent job of protecting Karthus during teamfights.
There is no perfect companion for Karthus that will no matter what be his ideal teammate. Yet, Hecarim is a good teammate for Karthus. By playing on the same side as Karthus, he improves their win rate by 1.5% to 48.8%. This clearly indicates that there is a potentially meaningful synergy between Karthus and Hecarim that allows them to perform better together than without each other.
Hecarim has a lower difficulty than Karthus. That means you don't need to be careful when lining up Hecarim comrades to go into battle on the same side as, as they will have to have a relatively low level of skill to work well with you.
When playing together, Karthus players should expect to witness an overall large increase in your team’s capability to deal magical damage. Combined, these champions can blast through enemies with magic damage.
Conversely, by pairing Karthus and Hecarim together, you probably will not be providing your team very much crowd control. We recommend you bring other champs on your team that neutralizes this disparity in this pairing's playstyle.
Regardless of the skill of your Hecarim teammate, you need to focus on increasing your gold income, staying alive by avoiding foolish fights, and clearing objectives. If you do this, you should do well, regardless.
To truly master Karthus to work well with Hecarim during both the early game and mid / late game phases of League of Legends matches, you should continue reading to pick up a few extra lessons on this champion pairing. If you pay attention to the build and stats shown above, you should grow your win rate by a lot.
The ideal finished items to focus on in your Karthus and Hecarim synergy build include Rabadon's Deathcap, Malignance, and Liandry's Torment. When Karthus bought at least these three items in his build, he performed much better when paired up with Hecarim than with most other commonly used builds. In fact, Karthus had an average win rate of 48.8% helping carry Hecarim with these items in his kit.
To have the greatest chance of coming out on top against your oponents, Karthus players 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. Out of all the rune combinations that we analyzed for this team composition, this composite of runes resulted in the greatest win rate. Moreover, these runes gave a 48.8% win rate overall.
If you need to get Karthus and Hecarim cooperations tips and builds for a a specific player tier, feel free to choose one from the selection menu provided above. If viewing for the first time, the stats and tips and suggestions given are calculated using every game with data with these champs.