Timing Janna's ultimate can push enemies away from a wounded ally or even separate enemies.
Eye of the Storm can be used on allied turrets.
Quickly firing a Howling Gale without the charge up can be used to heavily disable the other team.
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 Janna 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, Janna sees a large worsening in her KDA (ratio of kills and assists to deaths) when paired with Kai'Sa. His KDA went down from NaN to NaN. This negative change shows that Kai'Sa helps Janna perform not as well in competitive League games. Yet, the small difference shows that this performance change is not very impactful.
When Janna is paired with Kai'Sa, she gets a little drop in her total damage dealt. This may indicate that Kai'Sa does not support by providing protection for her to deal more damage or that her presence on the team also helps extend the game's duration. Similarly, when Janna is played alongside Kai'Sa on the same side, he usually scores many fewer killing sprees than when she plays alone. This is contrasting evidence that she is worse when playing with Kai'Sa.
Additionally, when Janna plays with Kai'Sa on the same side, she usually takes a little more damage than when she fights alone. Getting dealt more damage may mean that Kai'Sa does a poor job of protecting Janna during teamfights.
There is no ideal companion for Janna that will 100% of the time be her #1 teammate. However, Kai'Sa is a very bad ally for Janna. By being on the same team as Janna, she drops their win rate by -4.3% to 46.7%. This clearly indicates that there is a terrible bond between Janna and Kai'Sa that allows them to perform not as well together than alone.
Kai'Sa has a lower difficulty than Janna. That means you don't need to be cautious when finding Kai'Sa allies to play with, as they will need a relatively low level of skill to be able to play well with you.
When playing on the same side, you will likely see an overall large increase in your team’s ability to dish out massive AD. When paired, these champions should be able to take down targets with auto-attacks and other AD damage abilities.
Although, by grouping Janna and Kai'Sa together, you will not be providing your other allies much support. Plan to have other champions on your team that fills this relative gap in this pairing's playstyle.
Regardless of your Kai'Sa ally's ability, you need to focus on increasing your income, warding to avoid ambushes, and taking down objectives. If you do this, you will do well, regardless.
If you would like to truly master Janna to synergize with Kai'Sa during both the early game and mid / late game phases of LoL matches, you should continue reading to pick up some more tips and tricks for this champion pairing. If you pay attention to the build and tips presented here, you will increase your win rate by a lot.
The best items to build first in your Janna and Kai'Sa synergy build include Shurelya's Battlesong, Solstice Sleigh, and Imperial Mandate. When Janna bought at least these three great items in her build, she performed much better when paired up with Kai'Sa than with most other common item sets. In fact, Janna boasted an average win rate of 46.7% helping carry Kai'Sa with these items in her kit.
To have the highest chance of annihilating your oponents, you should take the Summon Aery, Manaflow Band, Celerity, Gathering Storm, Eyeball Collection, and Relentless Hunter runes from the Sorcery and Domination rune sets. Out of all the rune combinations players chose for this champion pairing, this blending of runes yielded the highest win rate. Moreover, these runes gave a 46.7% win rate overall.
By default, tips, statistics, and builds on how to synergize Kai'Sa with Janna are shown for all skill levels, merged. To narrow the statistics and builds to a particular rank, you may use the selection menu earlier on the page.