Make sure to buy items that will evolve at least 1 or 2 of your spells.
Work with your teammates to set up your Ultimate and optimize damage with your passive.
Try to catch enemy carries alone to burst them with Icathian Rain.
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.
The Kai'Sa Kassadin synergy stats shown here demonstrate the areas of her gameplay that do better (or worse) when paired with Kassadin, compared to her overall stats. Significant differences are areas of focus that highlight how her gameplay changes when paired with this other champion.
Overall, Kai'Sa sees a very large drop in her KDA (ratio of kills and assists to deaths) when paired with Kassadin. His KDA worsened from NaN to NaN. This worsening shows that Kassadin helps Kai'Sa perform not as well in competitive League of Legends rounds. Yet, the small difference indicates that this performance change is not very impactful.
When Kai'Sa plays on the same team as Kassadin, she gets a little drop in her complete damage output. This may signal that Kassadin does not support by providing cover for her to dish out more damage or that his presence also helps extend the game's duration. Similarly, when Kai'Sa is played alongside Kassadin on the same team, he usually scores many fewer killing sprees than when she plays without Kassadin. This is contrasting evidence that she is worse when playing alongside Kassadin.
Moreover, when Kai'Sa plays with Kassadin on the same side, she on average receives a little less damage than when she fights alone. Receiving not as much damage may indicate that Kassadin does a decent job of covering Kai'Sa in teamfights.
There is no one best synergy for Kai'Sa that will always be her top ally. However, overall, Kassadin is a not very good teammate for Kai'Sa. By locking into the same team as Kai'Sa, he drops their win rate by -1.6% to 44.9%. This shows that there is a harmful strategic relationship between Kai'Sa and Kassadin that allows them to perform worse together than without each other.
Kassadin has a greater difficulty than Kai'Sa. That means you must be very careful when finding Kassadin allies to play with, as they will need a greater level of skill to play well with you.
When playing alongside, you should observe an overall large increase in your team’s capacity to dish out massive AD. Combined, these champions can provide a great amount of sustained physical damage.
Conversely, by pairing Kai'Sa and Kassadin together, you will not be granting your other allies enough support. Make sure to bring other champs on your team that neutralizes this relative hole in this pairing's kit.
Regardless of the skill of your Kassadin ally, you need to focus on maximizing your gold income, outlasting your enemies, and clearing objectives. If you do this, you should do well, regardless.
To learn all of the intricacies of Kai'Sa to synergize with Kassadin during both the lane and mid / late game phases of LoL games, you should keep reading to gather some more tips and tricks for this champion pairing. If you pay attention to the build and suggestions presented above, you will grow your win rate significantly.
The best items to build first in your Kai'Sa and Kassadin synergy build include Terminus, Kraken Slayer, and Navori Quickblades. When Kai'Sa included at least these three great items in her build, she performed significantly better as an ally of Kassadin than with many other commonly used builds. In fact, Kai'Sa boasted an average win rate of 44.9% helping carry Kassadin with this build.
To have the highest chance of defeating your oponents, Kai'Sa players should equip the Lethal Tempo, Presence of Mind, Legend: Bloodline, Coup de Grace, Biscuit Delivery, and Magical Footwear runes from the Precision and Inspiration rune sets. Of all the rune builds players used for this team composition, this blending of runes resulted in the greatest win rate. Moreover, these runes provided a 44.9% winrate overall.
By default, tips, stats, and builds on how to team up Kassadin with Kai'Sa are presented for all skill levels, merged. To narrow the stats and builds to a specific player tier, you should use the selection menu at the top of this page.