Tormented Shadow is an excellent farming tool if you're by yourself in a lane.
Shrewd use of Black Shield can determine the outcome of team fights.
Items that provide survivability allow Morgana to become extremely difficult to kill in conjunction with Black Shield and Soul Shackles.
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 Morgana 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, Morgana sees a very large drop in her KDA (ratio of kills and assists to deaths) when paired with Karthus. His KDA decreased from NaN to NaN. This worsening shows that Karthus helps Morgana perform not as well in ranked League matches. Yet, the small difference demonstrates that this performance change is not very impactful.
When Morgana tries to synergize with Karthus, she sees a barely noticable drop in her total damage dealt. This could demonstrate that Karthus does not provide protection for her to deal more damage or that his support also helps extend the round's duration. Similarly, when Morgana is played with Karthus on the same side, he usually scores many fewer killing sprees compared to when she plays without Karthus. This is contrasting evidence that she is worse when playing with Karthus.
Additionally, when Morgana plays with Karthus on the same side, she often takes a little more damage than when she plays alone. Taking more damage may indicate that Karthus does a poor job of covering Morgana during teamfights.
There is no top champion pairing for Morgana that will no matter what be her ideal teammate. However, Karthus is a terrible ally for Morgana. By being on the same team as Morgana, he drops their win rate by -3.3% to 47.8%. This clearly indicates that there is a very bad bond between Morgana and Karthus that allows them to perform not as well together than without each other.
Karthus has a much greater difficulty compared to Morgana. That means you need to be very careful when finding Karthus allies to go into battle on the same side as, as they will need a much higher level of skill to cooperate well with you.
Fighting on the same side, Morgana players will likely see an overall large increase in your team’s capability to deal magical damage. Combined, these champs can blast through enemies with magic damage.
In contrast, by aligning Morgana and Karthus together, you will not be giving your side much attack damage. Make sure to bring other champs on your team that fills this disparity in this pairing's kit.
Regardless of your Karthus ally's ability, you should focus on increasing your income, warding to avoid ambushes, and taking down objectives. If you do this, you will do well anyway.
To truly master Morgana in order to work well with Karthus during both the early game and mid / late game phases of League of Legends rounds, you should continue reading to learn a few extra lessons on this champion pairing. If you pay attention to the build and tips shown here, you should grow your win rate by a lot.
The most crucial items to use in your Morgana and Karthus synergy build consist of Rylai's Crystal Scepter, Zaz'Zak's Realmspike, and Liandry's Torment. When Morgana bought at least these three items in her build, she performed a lot better as an ally of Karthus than with most other common builds. In fact, Morgana had an average winrate of 47.8% helping carry Karthus with this build.
To have the highest chance of beating your oponents, you should use the Arcane Comet, Manaflow Band, Transcendence, Scorch, Triple Tonic, and Biscuit Delivery runes from the Sorcery and Inspiration rune sets. Out of all the runes players chose for this champion pairing, this order of runes resulted in the best win rate. Notably, these runes gave a 47.8% win rate overall.
If you would like to see Morgana with Karthus collaboration tips and builds for a a particular division rank, feel free to select one from the selection menu above. If viewing for the first time, the statistics and build suggestions given are computed using all matches completed with these champs.