Kassadin's ultimate has many uses and is on a shorter cooldown than most, use it often.
Kassadin has multiple item paths; he can go caster via Mana and Ability Power or anti-caster with Cooldown Reduction and Magic Resist.
Try to get the Ancient Golem buff to counteract Riftwalk's increasing Mana cost.
Dodging Arctic Assault and Glacial Prison can give you a huge advantage.
Focus on avoiding the second swing of Winter's Wrath which carries the brunt of the damage.
Melee enemies can also stack Frost for Sejuani, be very careful around them.
The stat comparisons provided here show some critical Kassadin against Sejuani counter statistics that can help you understand the distinctions between this set of champs. As an example, Kassadin’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Sejuani’s ratio of NaN, demonstrating that Kassadin may be more central to his team's team fighting potential than Sejuani. This observation is in large part fueled by the difference in kills.
Kassadin usually has a slightly larger longest kill spree than his foe does. Commonly, he receives less damage than Sejuani. This commonly reflects different amounts of tankyness, yet it can also imply that the one champ has less mobility and thus is not able to kite away from additional harm when poked or engaged.
Both League of Legends champions are great champions. Both have their strengths, weaknesses, and counters. In the game's current meta, Kassadin usually wins when taking on Sejuani, with a 51.5% win rate. Thus, Kassadin makes a good counter to Sejuani.
While Kassadin does have a higher winrate than Sejuani, when facing one another, Kassadin also has a much greater difficulty level that makes him a more complex champ to learn and master. You still need to be cautious when picking Kassadin into Sejuanias his relative depth means you may not be able to reach his full potential without a significant amount of practice beforehand.
Moreover, Kassadin also has some amount of CC and other utility, a similar amount to Sejuani. This often makes her just as valuable during team fights, especially when fighting champions with a lot of burst damage.
While there isn't one best champion overall in League of Legends, in Kassadin vs Sejuani matchups, Kassadin is the better champ with a higher win rate, more champion depth, and a similar amount of utility to help out your allies during late stage team fights.
Kassadin is a decent counter to Sejuani. Make sure you focus your gameplay on increasing your CS and destroying objectives. If you can do that, you should be able to stand on your own as Kassadin against Sejuani.
To learn all of the intricacies of Kassadin to counter Sejuani during both the early game and mid / late game phases of League of Legends, you should continue reading to gather a few extra tips and tricks for this matchup. If you pay attention to the build and tips displayed above, you should increase your win rate significantly and be that much closer to League of Legends pro players.
Kassadin often racks up much more CS relative to Sejuani. Champs who on average don't take many minion kills typically don't require much CS to be valuable teammates, such as sup champs. These kinds of champions are capable of scaling properly off of their abilities and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, often have to have several high cost items to be effective. In either situation, try to do better than the values displayed here to do well.
The ideal items to focus on in your Kassadin versus Sejuani build consist of Seraph's Embrace, Rabadon's Deathcap, and Rod of Ages. When Kassadin used at least these three items in his build, he did much better when fighting Sejuani than with many other commonly used counter builds. In fact, Kassadin had an average win rate of 51.5% when countering Sejuani with this build.
To have the highest probability of vanquishing Sejuani as Kassadin, Kassadin players should use the First Strike, Magical Footwear, Future's Market, Cosmic Insight, Sudden Impact, and Ultimate Hunter runes from the Inspiration and Domination rune sets. Out of all the rune sets players picked for Kassadin vs Sejuani battles, this mix of runes resulted in the best win rate. Moreover, these runes averaged a 51.5% win rate overall.
By default, tips, stats, and builds on how to beat Sejuani as Kassadin are given for all skill levels combined. If you would like to filter the stats and builds to a distinct division, you should use the selection menu located at the top of this page.