It takes 6 spell casts for Kassadin's slow, Force Pulse, to become castable. If he levels up that ability, judiciously use your own skills while laning against him.
Kassadin deals mostly magic damage. If he's doing well consider buying magic resist items like Mercury's Treads and Banshee's Veil.
Each time Kassadin consecutively uses Riftwalk, he pays more and more mana. Keep this in mind as you chase him.
The stat comparisons provided here feature some vital Seraphine vs. Kassadin counter stats that may help us interpret the differences and similarities between this set of champions. For instance, Seraphine’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Kassadin’s KDA ratio of NaN, highlighting that Seraphine may be more central to her team's team fighting potential than Kassadin. This observation is in large part a result of the differences in assists.
Seraphine typically has a significantly smaller longest kill spree than her enemy does. Commonly, she receives less damage than Kassadin. This commonly reflects different amounts of tankyness, but it can also illustrate that the one champion has less agility and thus is unable to flee from additional harm when poked or engaged.
Both League of Legends champs are great champions. Both champs have their pros and cons. In the game's current meta, Seraphine usually loses when taking on Kassadin, with a 48.0% win rate. Thus, Seraphine makes a poor counter for Kassadin.
While Seraphine does have a lower win rate than Kassadin, when they face off with one another, Seraphine also has a much lower difficulty level that makes her a less difficult character to pick up and master. You should be very concerned when picking Seraphine into Kassadin.
Additionally, Seraphine has a great deal of utility and CC, a similar amount to Kassadin. This makes her just as valuable during team fights, especially when trying to counter champions with a lot of burst damage.
While there isn't one best champion in League of Legends, in Seraphine vs Kassadin matchups, Kassadin is the better champ with a lower win rate, less champion complexity, and a similar amount of utility to help out your teammates during late stage team fights.
Seraphine is a trash counter for Kassadin. Make sure you focus your strategy on increasing your gold and cs and destroying objectives. If you do that, you should do very well as Seraphine against Kassadin.
To truly master Seraphine to counter Kassadin during both the lane and mid / late game phases of League of Legends, you should keep reading to gather a few extra lessons on this matchup. If you listen to the build and stats displayed above, you will grow your win rate by a lot and be that much closer to League of Legends pro players.
Seraphine on average picks up less CS as Kassadin. Champs who typically don't acquire many minion kills often don't have to have much CS to be effective, such as sup champs. They are able to scale properly off of their abilities and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, often have to have a lot of items to be effective. In either situation, try to surpass the values shown here to do well.
The ideal items to focus on in your Seraphine versus Kassadin build include Seraph's Embrace, Rylai's Crystal Scepter, and Staff of Flowing Water. When Seraphine bought at least these three items in her build, she performed much better against Kassadin than with most other common counter builds. In fact, Seraphine had an average winrate of 48.0% when countering Kassadin with these items in her kit.
To have the greatest chance of beating Kassadin as Seraphine, Seraphine players should use the Summon Aery, Manaflow Band, Transcendence, Gathering Storm, Triple Tonic, and Cosmic Insight runes from the Sorcery and Inspiration rune sets. Of all the rune combinations players picked for Seraphine vs Kassadin fights, this set of runes yielded the greatest win rate. Moreover, these runes provided a 48.0% winrate overall.
By default, tips, statistics, and builds on how to beat Kassadin as Seraphine are presented for all skill levels combined. If you want to scope the statistics and builds to a distinct division, you can use the selection menu earlier in the counter matchup guide.