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.
Dodging Arctic Assault and Glacial Prison can give you a huge advantage.
Melee enemies can also stack Frost for Sejuani, be very careful around them.
Focus on avoiding the second swing of Winter's Wrath which carries the brunt of the damage.
The stats provided here feature some strategic Cassiopeia vs. Sejuani counter statistics that can help us realize the distinctions between the pair. For instance, Cassiopeia’s KDA ratio ([kills + assists] / deaths) of NaN is better than Sejuani’s KDA ratio of NaN, indicating that Cassiopeia may be more central to her team's team fighting capability than Sejuani..
Cassiopeia often has a slightly larger longest killing spree than her foe does. Commonly, she receives less damage than Sejuani. This commonly reflects different amounts of tankyness; however, it can also show that the champion with higher health has less mobility and thus is unable to escape additional harm when poked or engaged.
Both League champions are great champions. Both have their strengths, weaknesses, and counters. In the game's current meta, Cassiopeia usually wins when facing off against Sejuani, with a 52.5% win rate. As a result, Cassiopeia makes a good counter to Sejuani.
While Cassiopeia does have a higher winrate than Sejuani, when on opposite teams, Cassiopeia also has a much greater level of difficulty that makes her a more complex champion to learn. You don't need to be too worried when picking Cassiopeia into Sejuanias her relative depth means that you may not be able to reach her full potential without a significant amount of practice beforehand.
Additionally, Cassiopeia also has a good amount of utility and CC, a similar amount to Sejuani. This makes her just as valuable during team fights, especially when fighting champions with a lot of burst damage.
While there isn't a single best champion in League of Legends, in Cassiopeia vs Sejuani matchups, Cassiopeia is the better champion with a noticably higher win rate, more champion depth, and a similar amount of utility to help out your teammates during team fights.
Cassiopeia is a good counter for Sejuani. Focus your play on maximizing your CS and clearing objectives. If you can do that, you should be able to stand on your own as Cassiopeia against Sejuani.
If you would like to learn all of the intricacies of Cassiopeia in order to counter Sejuani during both the laning and mid / late game phases of League of Legends, you should keep reading to learn a few extra lessons on this matchup. If you pay attention to the build and tips presented here, you will increase your win rate significantly and be closer to League of Legends pro players.
Cassiopeia typically racks up more CS relative to Sejuani. Champions who on average don't take many minion kills typically don't need much CS to be effective, such as supports. They are able to scale properly off of their abilities and first items alone. Yet, champions with a lot of CS, such as hyper-carries, typically have to have a lot of items to be effective. In either situation, try to surpass the values reported here to do well.
The top items to prioritize in your Cassiopeia versus Sejuani build include Liandry's Anguish, Seraph's Embrace, and Zhonya's Hourglass. When Cassiopeia combined at least these three items in her build, she performed much better versus Sejuani than with many other common item sets. In fact, Cassiopeia boasted an average winrate of 52.5% battling Sejuani with this build.
To have the highest likelihood of annihilating Sejuani as Cassiopeia, Cassiopeia players should use the Conqueror, Presence of Mind, Legend: Tenacity, Last Stand, Conditioning, and Overgrowth runes from the Precision and Resolve rune sets. Out of all the rune sets we have analyed for Cassiopeia vs Sejuani counters, this mixture of runes yielded the highest win rate. Moreover, these runes gave a 52.5% winrate overall.
If you need to get Cassiopeia x Sejuani tips and builds for a a distinct player tier, feel free to choose one from the selection menu provided above. At first, the statistics and guides shown are calculated using all games played with both champs.