Kassadin's ultimate has many uses and is on a shorter cooldown than most, use it often.
Kassadin has multiple item paths; he can go caster via Mana and Ability Power or anti-caster with Cooldown Reduction and Magic Resist.
Try to get the Ancient Golem buff to counteract Riftwalk's increasing Mana cost.
Use Moonfall and Lunar Rush to stay on targets and activate Moonsilver Blade for extra damage.
Consider when to cast Lunar Rush without Moonlight and when to wait for another Crescent Strike.
Landing Crescent Strike is critically important, but don't be afraid to miss. The cooldown is short and the mana cost is low.
The Kassadin Diana synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Diana, compared to his overall stats. Significant differences are areas of focus that highlight how his gameplay changes when paired with this other champion.
Overall, Kassadin sees a large worsening in his KDA (ratio of kills and assists to deaths) when paired with Diana. His KDA went down from NaN to NaN. This worsening shows that Diana helps Kassadin perform poorer in competitive LoL games. Yet, the small difference demonstrates that this performance change is only marginal.
When Kassadin is paired with Diana, he observes a little drop in his full damage output. This difference could demonstrate that Diana does not provide protection for him to deal more damage or that her presence also helps increase the match's duration. Similarly, when Kassadin is played together with Diana on the same side, he usually scores many fewer killing sprees compared to when he plays on his own. This is contrasting evidence that he is worse when playing synergisticly with Diana.
Additionally, when Kassadin plays with Diana on the same team, he usually receives a little less damage than when he plays alone. Getting dealt not as much damage could indicate that Diana does a decent job of protecting Kassadin in team fights.
There is no perfect companion for Kassadin that will no matter what be his #1 synergy. Yet, Diana is a below average teammate for Kassadin. By locking into the same team as Kassadin, she drops their win rate by -2.1% to 47.9%. This shows that there is a bad strategic relationship between Kassadin and Diana that results in them performing not as well together than alone.
Diana has a much lower diffuclty than Kassadin. That means you don't need to be very careful when finding Diana teammates to fight alongside, as they will have to have a much lower level of skill to be able to fight well with you.
When playing cooperatively, Kassadin players should expect to witness an overall large increase in your team’s capability to deal magical damage. When paired, these champs can blast through enemies with magic damage.
In contrast, by bringing Kassadin and Diana together, you may not be granting your team a great deal of support. Make sure to include other champs on your team that helps cover this relative hole in this pairing's playstyle.
Regardless of the ability of your Diana ally, you need to focus on maximizing your gold income, staying alive by avoiding foolish fights, and taking down objectives. If you heed this simple advice, you should do well anyway.
If you would like to truly master Kassadin in order to work well with Diana during both the laning and mid / late game phases of LoL, you should keep reading to pick up some more tricks and insights into this champion pairing. If you pay attention to the build and stats presented here, you will increase your win rate significantly.
The ideal items to prioritize in your Kassadin and Diana synergy build consist of Seraph's Embrace, Rabadon's Deathcap, and Malignance. When Kassadin bought at least these three great items in his build, he performed significantly better as an ally of Diana than with many other commonly used builds. In fact, Kassadin boasted an average winrate of 47.9% when playing alongside Diana with this build.
To have the best chance of vanquishing your oponents, you should take the First Strike, Magical Footwear, Future's Market, Cosmic Insight, Sudden Impact, and Ultimate Hunter runes from the Inspiration and Domination rune sets. Out of all the rune combinations players chose for this champion pairing, this sequence of runes resulted in the greatest win rate. Notably, these runes gave a 47.9% win rate overall.
By default, tips, statistics, and builds on how to synergize Diana with Kassadin are shown for every ranked division. If you want to narrow the statistics and builds to a specific rank, you can use the selection menu located above.