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.
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.
The Rek'Sai Kai'Sa synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Kai'Sa, compared to his overall stats. Significant differences are areas of focus that highlight how his gameplay changes when paired with this other champion.
Overall, Rek'Sai sees a very large drop in his KDA (ratio of kills and assists to deaths) when paired with Kai'Sa. His KDA worsened from NaN to NaN. This fall shows that Kai'Sa helps Rek'Sai perform worse in ranked LoL matches. Yet, the small difference shows that this performance change is not very impactful.
When Rek'Sai plays on the same team as Kai'Sa, he observes a barely noticable drop in his total damage output. This change may demonstrate that Kai'Sa does not help cover for him to dish out more damage or that her presence also helps extend the round's duration. Similarly, when Rek'Sai is played alongside Kai'Sa on the same side, he usually scores many fewer killing sprees than when he plays on his own. This is contrasting evidence that he is worse when playing with Kai'Sa.
Moreover, when Rek'Sai plays with Kai'Sa on the same side, he often takes a little less damage than when he plays alone. Taking not as much damage may indicate that Kai'Sa does a decent job of protecting Rek'Sai in teamfights.
There is no one best champion pairing for Rek'Sai that will no matter what be his ideal teammate. Yet, Kai'Sa is a terrible teammate for Rek'Sai. By being on the same team as Rek'Sai, she drops their win rate by -3.2% to 45.2%. This clearly indicates that there is an easy to overcome and exploit bond between Rek'Sai and Kai'Sa that results in them performing not as well together than alone.
Kai'Sa has a greater difficulty than Rek'Sai. That means you should be very careful when enlisting Kai'Sa comrades to play with, as they will require a greater level of skill to cooperate well with you.
Fighting alongside, you should expect to witness an overall large increase in your team’s capacity to deal physical damage. When paired, these champs should be able to take down targets with auto-attacks and other AD damage abilities.
Although, by pairing Rek'Sai and Kai'Sa together, you may not be giving your side enough crowd control. We recommend you have other champions on your team that offsets this gap in this pairing's capabilities.
Regardless of your Kai'Sa ally's ability, you should focus on increasing your income, outlasting your enemies, and clearing objectives. If you follow these simple suggestions, you will do well anyway.
To truly master Rek'Sai to pair well with Kai'Sa during both the lane and mid / late game phases of League of Legends games, you should continue reading to pick up additional lessons on this champion pairing. If you pay attention to the build and stats presented here, you will increase your win rate by a lot.
The best items to build first in your Rek'Sai and Kai'Sa synergy build include Sterak's Gage, Black Cleaver, and Titanic Hydra. When Rek'Sai combined at least these three pieces in his build, he performed a lot better when fighting alongside Kai'Sa than with most other typical item sets. In fact, Rek'Sai boasted an average win rate of 45.2% when synergizing his build and playstyle to Kai'Sa with these items in his kit.
To have the highest chance of defeating your oponents, you should use the Conqueror, Triumph, Legend: Alacrity, Coup de Grace, Magical Footwear, and Cosmic Insight runes from the Precision and Inspiration rune sets. Of all the rune builds that we analyzed for this champion pairing, this set of runes yielded the top win rate. Notably, these runes averaged a 45.2% winrate overall.
By default, tips, statistics, and builds on how to pair Kai'Sa with Rek'Sai are presented for all skill levels, merged. If you want to narrow the stats and builds to a particular division, you may use the selection menu located above.