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 Rell Karthus synergy stats shown here demonstrate the areas of her gameplay that do better (or worse) when paired with Karthus, compared to her overall stats. Significant differences are areas of focus that highlight how her gameplay changes when paired with this other champion.
Overall, Rell sees a large worsening in her KDA (ratio of kills and assists to deaths) when paired with Karthus. His KDA worsened from NaN to NaN. This worsening shows that Karthus helps Rell perform worse in ranked League of Legends rounds. Yet, the small difference shows that this performance change is only marginal.
When Rell plays on the same team as Karthus, she sees a small increase in her complete damage output. This change could demonstrate that Karthus provides protection for her to deal more damage or that his presence on the team also helps extend the round's duration. Similarly, when Rell is played with Karthus on the same team, he usually scores many fewer killing sprees than when she plays on his own. This is contrasting evidence that she is worse when playing synergisticly with Karthus.
Moreover, when Rell plays with Karthus on the same team, she usually receives a little more damage than when she plays alone. Taking more damage could indicate that Karthus does a poor job of protecting Rell during team fights.
There is no top champion pairing for Rell that will no matter what be her best synergy. Yet, overall, Karthus is a very typical companion for Rell. By playing on the same side as Rell, he improves their win rate by 0.6% to 49.9%. This demonstrates that there is not really a strong bond between Rell and Karthus that results in them performing at the top of their game together than without each other.
Karthus has a much greater difficulty compared to Rell. That means Rell players should be careful when lining up Karthus comrades to go into battle on the same side as, as they will have to have a much higher level of skill to fight well with you.
Fighting alongside, Rell players will likely observe an overall large increase in your team’s capacity to provide a lot of utility for your team. Combined, these champions may be able to carry with the power of their abilities.
Conversely, by bringing Rell and Karthus together, you may not be giving your team much anti-tank damage dealing potential. We recommend you bring other champions on your team that fills this relative disparity in their potential.
Regardless of the skill of your Karthus teammate, you should focus on increasing 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 Rell in order to pair well with Karthus during both the lane and mid / late game phases of League of Legends rounds, you should keep reading to gather a few extra tips and tricks for this champion pairing. If you listen to the build and tips shown above, you will increase your win rate significantly.
The most crucial items to prioritize in your Rell and Karthus synergy build consist of Trailblazer, Zeke's Convergence, and Celestial Opposition. When Rell incorporated at least these three pieces in her build, she performed significantly better when fighting alongside Karthus than with most other typical item sets. In fact, Rell had an average winrate of 49.9% when synergizing her build and playstyle to Karthus with these items in her kit.
To have the highest chance of defeating your oponents, you should take the Glacial Augment, Hextech Flashtraption, Minion Dematerializer, Cosmic Insight, Bone Plating, and Unflinching runes from the Inspiration and Resolve rune sets. Of all the runes players used for this champion pairing, this blending of runes resulted in the best win rate. Moreover, these runes gave a 49.9% winrate overall.
By default, tips, stats, and builds on how to pair Karthus with Rell are displayed for every ranked division. To scope the stats and builds to an individual player tier, you should use the selection menu located earlier on the page.