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.
The stats shown here underscore several strategic Kassadin against Sett counter stats that may help you interpret the distinctions between the pair. For instance, Kassadin’s KDA ratio ([kills + assists] / deaths) of NaN is better than Sett’s ratio of NaN, demonstrating that Kassadin may be more central to his team's team fighting capacity than Sett..
Kassadin often has a similar longest kill spree as his enemy does. Commonly, he receives less damage than Sett. This commonly reflects different amounts of tankyness, but it can also show 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 champs are great. Both have their pros and cons. In League's current meta, Kassadin usually fairs equally well when facing off against Sett, with a 49.6% win rate. As a result, Kassadin makes an ok counter for Sett.
While Kassadin does have a lower winrate compared to Sett, when facing one another, Kassadin also has a much greater difficulty level that makes him a more challenging champion to learn. You still need to be cautious when picking Kassadin into Settas his relative depth means you may not be able to reach his full potential without a lot of practice beforehand.
Moreover, Kassadin also has some amount of utility and CC, a similar amount to Sett. This makes her just as valuable during teamfights, especially when trying to counter champions with a lot of burst damage.
While there is not one best champion overall in League of Legends, in Kassadin vs Sett matchups, Sett is the better champ with a similar win rate, more champion depth, and a similar amount of utility to help out your teammates during teamfights.
Kassadin is a somewhat poor counter to Sett. Focus your play on keeping up your gold and cs and taking out objectives. If you do that, you should do very well as Kassadin against Sett.
To learn all of the intricacies of Kassadin to counter Sett during both the early game and mid / late game phases of League of Legends, you should keep reading to gather a few extra lessons on this matchup. If you pay attention to the build and tips presented above, you will increase your win rate significantly and be that much closer to League of Legends pro players.
Kassadin typically racks up a similar amount of CS as Sett. Champs who typically don't acquire much CS often don't need much CS to be effective, such as supports. They are capable of scaling properly off of their abilities and first items alone. Yet, champs 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 reported on this page to do well.
The most crucial items to have in your Kassadin versus Sett build consist of Rabadon's Deathcap, Malignance, and Rod of Ages. When Kassadin combined at least these three items in his build, he did much better vs Sett than with most other commonly used item sets. In fact, Kassadin had an average winrate of 49.6% when playing against Sett with this build.
To have the best likelihood of beating Sett as Kassadin, Kassadin players should take 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 combinations players chose for Kassadin vs Sett face-offs, this mixture of runes resulted in the highest win rate. In fact, these runes provided a 49.6% win rate overall.
By default, tips, stats, and builds on how to beat Sett as Kassadin are presented for all skill levels combined. To narrow the statistics and builds to a distinct skill level, you should use the selection menu above.