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.
Keeping tunnels spread out across the map will ensure you have choices when you want to cast Void Rush.
Cast Burrow before travelling around the map to take advantage of the increased Move Speed and the safety provided by Tremor Sense.
Tremor Sense can warn you of enemies closing in, and is particularly useful when entering enemy territory.
The Kai'Sa Rek'Sai synergy stats shown here demonstrate the areas of her gameplay that do better (or worse) when paired with Rek'Sai, 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 Rek'Sai. His KDA decreased from NaN to NaN. This worsening shows that Rek'Sai helps Kai'Sa perform poorer in ranked League rounds. Yet, the small difference shows that this performance change is only marginal.
When Kai'Sa is an ally to Rek'Sai, she observes a little decrease in her total damage dealt. This could indicate that Rek'Sai does not help protection 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 Rek'Sai on the same team, he usually scores many fewer killing sprees than when she plays without Rek'Sai. This is contrasting evidence that she is worse when playing with Rek'Sai.
Moreover, when Kai'Sa plays with Rek'Sai on the same team, she on average receives a little less damage than when she plays alone. Getting dealt not as much damage could mean that Rek'Sai does a decent job of protecting Kai'Sa during team fights.
There is no top ally for Kai'Sa that will 100% of the time be her #1 synergy. Yet, overall, Rek'Sai is a below average companion for Kai'Sa. By being on the same side as Kai'Sa, he lowers their win rate by -1.3% to 45.2%. This demonstrates that there is a harmful strategic relationship between Kai'Sa and Rek'Sai that allows them to perform worse together than without each other.
Rek'Sai has a much lower diffuclty than Kai'Sa. That means Kai'Sa players don't need to be careful when finding Rek'Sai teammates to fight alongside, as they will have to have a much lower level of skill to fight well with you.
Working cooperatively, Kai'Sa players will likely see an overall large increase in your team’s capacity to dish out massive AD. Together, these two should be able to take down targets with auto-attacks and other AD damage abilities.
In contrast, by pairing Kai'Sa and Rek'Sai together, you will not be giving your other allies enough support. Make sure to have other champs on your team that fills this relative hole in their potential.
Regardless of your Rek'Sai ally's ability, you should focus on increasing your gold income, warding to avoid ambushes, and taking down objectives. If you do this, you will do well anyway.
If you would like to truly master Kai'Sa in order to work well with Rek'Sai during both the laning and mid / late game phases of League of Legends matches, you should keep reading to gather some more tips and tricks for this champion pairing. If you pay attention to the build and suggestions shown above, you should increase your win rate by a lot.
The best items to use in your Kai'Sa and Rek'Sai synergy build include Wit's End, Guinsoo's Rageblade, and Terminus. When Kai'Sa used at least these three great items in her build, she did significantly better when fighting alongside Rek'Sai than with most other commonly used builds. In fact, Kai'Sa had an average win rate of 45.2% helping carry Rek'Sai with this build.
To have the best chance of beating your oponents, Kai'Sa players should equip the Hail of Blades, Taste of Blood, Eyeball Collection, Treasure Hunter, Biscuit Delivery, and Magical Footwear runes from the Domination and Inspiration rune sets. Out of all the runes players used for this team composition, this order of runes resulted in the best win rate. In fact, these runes averaged a 45.2% win rate overall.
By default, tips, stats, and builds on how to synergize Rek'Sai with Kai'Sa are shown for all ranked divisions combined. To filter the statistics and builds to an individual division, you should use the selection menu above.