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.
Lee Sin relies heavily on following up with his abilities. Use disables to prevent him from chaining together his abilities and attacks.
Stay spread out to minimize the impact of Lee Sin's ultimate, Dragon's Rage.
Lee Sin has powerful tools to combat physical damage in Iron Will and Cripple but he is still vulnerable to magic damage.
The stat comparisons provided here underscore several critical Kassadin versus Lee Sin counter stats that may help us understand the differences between these two champions. As an example, Kassadin’s KDA ratio ([kills + assists] / deaths) of NaN is better than Lee Sin’s KDA ratio of NaN, indicating that Kassadin may be more central to his team's team fighting effectiveness than Lee Sin..
Kassadin normally has a similar longest kill spree as his counter does. Commonly, he takes less damage than Lee Sin. This is usually reflective of differing health capacities, yet it can also hint that the one champ has less mobility and thus is unable to escape further damage when poked or engaged.
Both League champs are great. Both champs have their strengths, weaknesses, and counters. In League's current meta, Kassadin usually wins when playing against Lee Sin, with a 51.7% win rate. Therefore, Kassadin makes a good counter for Lee Sin.
While Kassadin does have a higher winrate than Lee Sin, when facing one another, Kassadin also has a greater difficulty level that makes him a more time consuming character to learn and master. You should be careful when picking Kassadin into Lee Sinas his relative depth means you may not be able to reach his full potential without a lot of practice beforehand.
Moreover, Kassadin has some amount of utility and CC, a similar amount to Lee Sin. This often makes her just as valuable during team fights, especially when trying to counter champions with a ton of burst damage.
While there is not one best champion overall in League of Legends, in Kassadin vs Lee Sin matchups, Kassadin is the better champion with a higher win rate, more champion depth, and a similar amount of utility to help out your teammates during late stage team fights.
Kassadin is a decent counter for Lee Sin. Make sure you focus your actions on increasing your CS and taking out objectives. If you are able to do that, you should hold your own as Kassadin against Lee Sin.
If you would like to learn all of the intricacies of Kassadin in order to counter Lee Sin 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 mind the build and stats shown here, you will grow your win rate by a lot and be that much closer to League of Legends pro players.
Kassadin often racks up much more CS relative to Lee Sin. Champions who on average don't acquire much CS often don't need much CS to be valuable teammates, such as supports. These kinds of champions are capable of scaling well off of their abilities and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, usually have to have several high cost items to be effective. In either situation, try to exceed the values displayed here to do well.
The most crucial items to prioritize in your Kassadin versus Lee Sin build consist of Seraph's Embrace, Rabadon's Deathcap, and Zhonya's Hourglass. When Kassadin combined at least these three pieces in his build, he did much better when facing Lee Sin than with many other typical builds. In fact, Kassadin had an average win rate of 51.7% battling Lee Sin with this build.
To have the best chance of vanquishing Lee Sin as Kassadin, you should equip the First Strike, Magical Footwear, Future's Market, Cosmic Insight, Sudden Impact, and Ultimate Hunter runes from the Inspiration and Domination rune sets. Of all the rune sets we have analyed for Kassadin vs Lee Sin matchups, this set of runes resulted in the best win rate. Notably, these runes provided a 51.7% winrate overall.
If you want to see Kassadin x Lee Sin tips and counter builds for a an individual player tier, please choose one from the selection menu above. At first, the statistics and strategies given are computed using every match finished with these champs.