Lead your enemy when targeting with Noxious Blast to ensure the hit.
Use Twin Fang on poisoned stationary targets like monsters and units stunned by her Petrifying Gaze for maximum damage.
Remember that nearby enemies can see which wall you're in.
Look at the line-up of both your team and the enemy's team when picking your form.
The Cassiopeia Kayn synergy stats shown here demonstrate the areas of her gameplay that do better (or worse) when paired with Kayn, compared to her overall stats. Significant differences are areas of focus that highlight how her gameplay changes when paired with this other champion.
Overall, Cassiopeia sees a large worsening in her KDA (ratio of kills and assists to deaths) when paired with Kayn. His KDA went down from NaN to NaN. This decrease shows that Kayn helps Cassiopeia perform worse in competitive League of Legends rounds. Yet, the small difference shows that this performance change is only marginal.
When Cassiopeia tries to synergize with Kayn, she observes a little increase in her full damage output. This may indicate that Kayn supports by providing cover for her to dish out more damage or that his presence on the team also helps extend the match's duration. Similarly, when Cassiopeia is played with Kayn on the same team, he usually scores many fewer killing sprees than when she plays alone. This is contrasting evidence that she is worse when playing with Kayn.
Moreover, when Cassiopeia plays with Kayn on the same side, she typically receives a little more damage than when she plays alone. Receiving more damage could mean that Kayn does a poor job of protecting Cassiopeia during teamfights.
There is no perfect companion for Cassiopeia that will always be her best teammate. However, Kayn is a pretty good ally for Cassiopeia. By locking into the same side as Cassiopeia, he improves their win rate by 1.4% to 51.7%. This demonstrates that there is a good synergy between Cassiopeia and Kayn that allows them to perform stronger together than without each other.
Kayn has a lower difficulty than Cassiopeia. That means you don't need to be very careful when arranging Kayn allies to play with, as they will have to have a relatively low level of skill to be able to play well with you.
When playing on the same side, Cassiopeia players should witness an overall large increase in your team’s capacity to dish out massive AD. When paired, these two can provide a great amount of sustained physical damage.
Conversely, by bringing Cassiopeia and Kayn together, you will not be giving your team much protection for burst damage. Plan to bring other champions on your team that nullifies this hole in this pairing's playstyle.
Regardless of your Kayn ally's ability, you need to focus on maximizing your gold income, staying alive by avoiding foolish fights, and taking down objectives. If you do this, you will do well, regardless.
To truly master Cassiopeia in order to synergize with Kayn during both the laning and mid / late game phases of League, you should keep reading to pick up additional tricks and insights into this champion pairing. If you pay attention to the build and suggestions shown above, you will grow your win rate significantly.
The ideal items to have in your Cassiopeia and Kayn synergy build include Seraph's Embrace, Rabadon's Deathcap, and Rylai's Crystal Scepter. When Cassiopeia combined at least these three finished items in her build, she did significantly better as an ally of Kayn than with many other commonly used builds. In fact, Cassiopeia had an average win rate of 51.7% helping carry Kayn with these items in her kit.
To have the greatest probability of crushing your oponents, you should use the Conqueror, Presence of Mind, Legend: Tenacity, Last Stand, Manaflow Band, and Transcendence runes from the Precision and Sorcery rune sets. Of all the rune builds players picked for this team composition, this composite of runes yielded the highest win rate. Notably, these runes gave a 51.7% win rate overall.
By default, tips, stats, and builds on how to team up Kayn with Cassiopeia are displayed for all skill levels combined. To narrow the stats and builds to a specific division, you may use the selection menu at the top of this page.