Olaf can combine Berserker Rage, Vicious Strikes, and Ragnarok at low life to become deceptively strong.
The bonus healing granted by Vicious Strikes amplifies your Life Steal from all sources as well as heals from allies.
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 Olaf Karthus synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Karthus, compared to his overall stats. Significant differences are areas of focus that highlight how his gameplay changes when paired with this other champion.
Overall, Olaf sees a large worsening in his KDA (ratio of kills and assists to deaths) when paired with Karthus. His KDA decreased from NaN to NaN. This drop shows that Karthus helps Olaf perform worse in competitive League of Legends rounds. Yet, the small difference proves that this performance change is only marginal.
When Olaf tries to synergize with Karthus, he observes a little decrease in his total damage output. This change could signal that Karthus does not help cover for him to deal more damage or that his presence on the team also helps extend the match's duration. Similarly, when Olaf is played with Karthus on the same team, he usually scores many fewer killing sprees than when he plays on his own. This is contrasting evidence that he is worse when playing alongside Karthus.
Additionally, when Olaf plays with Karthus on the same team, he usually receives a little more damage than when he fights alone. Getting dealt more damage may mean that Karthus does a poor job of covering Olaf in teamfights.
There is no perfect ally for Olaf that will always be his ideal ally. Yet, overall, Karthus is a good companion for Olaf. By playing on the same side as Olaf, he increases their win rate by 2.2% to 51.7%. This signals that there is a good bond between Olaf and Karthus that allows them to perform better together than without each other.
Karthus has a much greater difficulty compared to Olaf. That means Olaf players should be cautious when lining up Karthus comrades to go into battle on the same side as, as they will need a much greater level of skill to work well with you.
Working cooperatively, you should expect to observe an overall large increase in your team’s ability to deal magic damage. Together, these champs can blast through enemies with magic damage.
Although, by pairing Olaf and Karthus together, you will not be giving your other allies a lot of tankyness. Plan to have other champions on your team that fills this relative gap in this pairing's kit.
Regardless of your Karthus ally's skill level, you should focus on maximizing your income, outlasting your enemies, and taking down objectives. If you do this, you should do well anyway.
If you would like to truly master Olaf to synergize with Karthus during both the early game and mid / late game phases of LoL games, you should keep reading to master some more tricks and insights into this champion pairing. If you mind the build and stats presented here, you should increase your win rate significantly.
The most crucial items to focus on in your Olaf and Karthus synergy build include Stridebreaker, Ravenous Hydra, and Death's Dance. When Olaf incorporated at least these three great items in his build, he did a lot better when fighting alongside Karthus than with many other commonly used builds. In fact, Olaf boasted an average winrate of 51.7% when playing alongside Karthus with these items in his kit.
To have the best likelihood of vanquishing your oponents, you should equip the Conqueror, Triumph, Legend: Alacrity, Last Stand, Biscuit Delivery, and Approach Velocity runes from the Precision and Inspiration rune sets. Of all the rune sets players chose for Olaf and Karthus pairings, this sequence of runes resulted in the top win rate. Notably, these runes gave a 51.7% win rate overall.
By default, tips, stats, and builds on how to team up Karthus with Olaf are displayed for all skill levels, merged. To filter the statistics and builds to an individual division, you should use the selection menu at the top of this page.