Melee allies can stack Frost for your Permafrost, keep an eye on who they are attacking.
Save Glacial Prison for encounters where you have teammates present to take advantage of it.
Use Arctic Assault to escape bad situations, interupt channeled spells or chase runners.
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 Sejuani Kai'Sa synergy stats shown here demonstrate the areas of her gameplay that do better (or worse) when paired with Kai'Sa, compared to her overall stats. Significant differences are areas of focus that highlight how her gameplay changes when paired with this other champion.
Overall, Sejuani sees a large worsening in her KDA (ratio of kills and assists to deaths) when paired with Kai'Sa. His KDA fell from NaN to NaN. This decrease shows that Kai'Sa helps Sejuani perform poorer in ranked League rounds. Yet, the small difference shows that this performance change is only marginal.
When Sejuani is paired with Kai'Sa, she sees a small decrease in her total damage output. This change may demonstrate that Kai'Sa does not help cover for her to deal more damage or that her presence also helps increase the round's duration. Similarly, when Sejuani is played together with Kai'Sa on the same side, he usually scores many fewer killing sprees compared to when she plays on his own. This is contrasting evidence that she is worse when playing with Kai'Sa.
Moreover, when Sejuani plays with Kai'Sa on the same team, she typically receives a little less damage than when she plays alone. Receiving not as much damage may indicate that Kai'Sa does a decent job of covering Sejuani during teamfights.
There is no ideal ally for Sejuani that will 100% of the time be her top ally. Yet, overall, Kai'Sa is a very bad companion for Sejuani. By playing on the same team as Sejuani, she decreases their win rate by -4.7% to 42.2%. This signals that there is an easy to overcome and exploit bond between Sejuani and Kai'Sa that allows them to perform not as well together than without each other.
Kai'Sa has a greater difficulty than Sejuani. That means Sejuani players should be careful when lining up Kai'Sa teammates to play with, as they will require a greater level of skill to play well with you.
Playing together, you should see an overall large increase in your team’s capacity to deal physical damage. Together, these two should be able to take down targets with auto-attacks and other AD damage abilities.
Conversely, by pairing Sejuani and Kai'Sa together, you will not be giving your side very much crowd control. Make sure to have other champions on your team that helps cover this disparity in this pairing's kit.
Regardless of your Kai'Sa ally's ability, you should focus on increasing your income, staying alive by avoiding foolish fights, and clearing objectives. If you follow these simple suggestions, you should do well anyway.
To truly master Sejuani in order to synergize with Kai'Sa during both the laning and mid / late game phases of League matches, you should keep reading to gather a few extra tips and tricks for this champion pairing. If you mind the build and stats shown here, you will increase your win rate by a lot.
The best items to have in your Sejuani and Kai'Sa synergy build include Kaenic Rookern, Sunfire Aegis, and Thornmail. When Sejuani incorporated at least these three great items in her build, she did much better when paired up with Kai'Sa than with many other common item sets. In fact, Sejuani had an average winrate of 42.2% when synergizing her build and playstyle to Kai'Sa with this build.
To have the highest chance of coming out on top against your oponents, you should use the Aftershock, Font of Life, Conditioning, Overgrowth, Legend: Alacrity, and Triumph runes from the Resolve and Precision rune sets. Out of all the rune combinations players picked for Sejuani and Kai'Sa pairings, this combination of runes resulted in the top win rate. In fact, these runes gave a 42.2% win rate overall.
By default, tips, stats, and builds on how to pair Kai'Sa with Sejuani are shown for all skill levels, merged. If you want to scope the stats and builds to a distinct division, you should use the selection menu earlier in the counter matchup guide.