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.
Shield of Daybreak and Zenith Blade form a powerful offensive combo.
Lead the charge and mark your foes with Sunlight before your allies deal damage.
You can absorb a huge amount of damage using Eclipse, but you must stay near enemies to gain the bonus duration.
The Kassadin Leona synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Leona, 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 Leona. His KDA worsened from NaN to NaN. This fall shows that Leona helps Kassadin perform not as well in ranked League matches. Yet, the small difference indicates that this performance change is not very impactful.
When Kassadin is paired with Leona, he sees a small increase in his full damage dealt. This change may indicate that Leona helps provide protection for him to deal more damage or that her participation also helps extend the game's duration. Similarly, when Kassadin is played together with Leona 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 with Leona.
Additionally, when Kassadin plays with Leona on the same team, he usually receives a little less damage than when he fights alone. Taking not as much damage could mean that Leona does a decent job of protecting Kassadin in team fights.
There is no ideal synergy for Kassadin that will 100% of the time be his top teammate. Yet, Leona is a top-tier ally for Kassadin. By playing on the same team as Kassadin, she increases their win rate by 4.3% to 54.3%. This demonstrates that there is a very strong bond between Kassadin and Leona that allows them to perform stronger together than without each other.
Leona has a much lower diffuclty than Kassadin. That means Kassadin players don't need to be very careful when lining up Leona allies to play with, as they will need a much lower level of skill to be able to play well with you.
Playing cooperatively, Kassadin players will likely witness an overall large increase in your team’s capability to provide utility and CC for your side. When paired, these champs will help their other teammates secure a victory.
Although, by pairing Kassadin and Leona together, you will not be providing your other teammates much sustained damage output. Make sure to pick other champs on your team that offsets this disparity in their abilities.
Regardless of your Leona ally's ability, you should focus on maximizing your income, staying alive by avoiding foolish fights, and clearing objectives. If you do this, you will do well, regardless.
To learn all of the intricacies of Kassadin to work well with Leona during both the laning and mid / late game phases of LoL matches, you should continue reading to pick up a few extra tricks and insights into this champion pairing. If you mind the build and tips displayed here, you should increase your win rate significantly.
The most crucial finished items to have in your Kassadin and Leona synergy build consist of Seraph's Embrace, Malignance, and Stormsurge. When Kassadin incorporated at least these three finished items in his build, he did much better as an ally of Leona than with many other commonly used builds. In fact, Kassadin boasted an average winrate of 54.3% helping carry Leona with these items in his kit.
To have the best likelihood of defeating 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 builds players chose for this team composition, this order of runes yielded the highest win rate. Moreover, these runes gave a 54.3% winrate overall.
If you would like to see Kassadin and Leona collaboration tips and builds for a a specific division rank, please choose one from the selection menu shown above. If viewing for the first time, the statistics and build suggestions given are calculated using every game finished with both champions.