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.
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.
The Sejuani Cassiopeia synergy stats shown here demonstrate the areas of her gameplay that do better (or worse) when paired with Cassiopeia, 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 very large drop in her KDA (ratio of kills and assists to deaths) when paired with Cassiopeia. His KDA fell from NaN to NaN. This decrease shows that Cassiopeia helps Sejuani perform poorer in ranked LoL matches. Yet, the small difference demonstrates that this performance change is not very impactful.
When Sejuani is paired with Cassiopeia, she sees a little drop in her total damage output. This difference may signal that Cassiopeia does not help cover for her to deal more damage or that her participation also helps extend the match's duration. Similarly, when Sejuani is played with Cassiopeia on the same team, he usually scores many fewer killing sprees compared to when she plays alone. This is contrasting evidence that she is worse when playing with Cassiopeia.
Moreover, when Sejuani plays with Cassiopeia on the same side, she on average takes a little more damage than when she fights alone. Taking more damage may mean that Cassiopeia does a poor job of covering Sejuani during teamfights.
There is no perfect synergy for Sejuani that will no matter what be her #1 ally. However, overall, Cassiopeia is a relatively poor ally for Sejuani. By locking into the same side as Sejuani, she drops their win rate by -2.0% to 44.9%. This clearly indicates that there is a negative bond between Sejuani and Cassiopeia that results in them performing worse together than without each other.
Cassiopeia has a much greater difficulty compared to Sejuani. That means Sejuani players should be careful when finding Cassiopeia teammates to go into battle on the same side as, as they will have to have a much greater level of skill to be able to fight well with you.
Fighting cooperatively, Sejuani players should expect to witness an overall large increase in your team’s capacity to deal magic damage. Together, these two can deal quite a lot of AP type damage.
Although, by aligning Sejuani and Cassiopeia together, you will not be providing your other allies enough sustained damage output. We recommend you bring other champs on your team that nullifies this relative hole in this pairing's abilities.
Regardless of your Cassiopeia ally's skill level, you need to focus on increasing your gold income, outlasting your enemies, and taking down objectives. If you follow these simple suggestions, you should do well, regardless.
If you would like to learn all of the intricacies of Sejuani to work well with Cassiopeia during both the early game and mid / late game phases of League of Legends rounds, you should keep reading to pick up some more lessons on this champion pairing. If you listen to the build and tips displayed here, you should grow your win rate by a lot.
The ideal finished items to include in your Sejuani and Cassiopeia synergy build consist of Sunfire Aegis, Thornmail, and Jak'Sho, The Protean. When Sejuani combined at least these three great items in her build, she did much better when paired up with Cassiopeia than with many other typical item sets. In fact, Sejuani boasted an average win rate of 44.9% when synergizing her build and playstyle to Cassiopeia with this build.
To have the highest chance of beating your oponents, you should use the Aftershock, Font of Life, Conditioning, Overgrowth, Legend: Alacrity, and Triumph runes from the Resolve and Precision rune sets. Of all the rune combinations that we analyzed for this team composition, this set of runes yielded the top win rate. In fact, these runes gave a 44.9% win rate overall.
By default, tips, stats, and builds on how to pair Cassiopeia with Sejuani are displayed for all skill levels combined. If you want to scope the statistics and builds to a distinct rank, you should use the selection menu located earlier in the counter matchup guide.