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.
LeBlanc's ultimate can create fake LeBlancs during her spellcast or, rarely, at a distant position.
The fake LeBlanc created at a distance will always run at the nearest Champion, cast a harmless spell, then immediately disappear.
Attacking LeBlanc first avoids most of her tricks, especially if she's recently used her dash, Distortion.
Stunning or silencing LeBlanc will prevent her from activating the return part of Distortion.
The stat comparisons provided here show several valuable Kassadin vs. LeBlanc matchup stats that may help you realize the differences between the pair. For instance, Kassadin’s KDA ratio ([kills + assists] / deaths) of NaN is greater than LeBlanc’s KDA ratio of NaN, indicating that Kassadin may be more central to his team's team fighting effectiveness than LeBlanc..
Kassadin normally has a similar longest kill spree as his foe does. Typically, he takes more damage than LeBlanc. This is usually reflective of differing health capacities; however, it can also imply that the one champ has less mobility and thus is not able to escape additional harm when engaged or poked.
Both League of Legends champions are great. Both champs have their strengths, weaknesses, and counters. In the game's current meta, Kassadin usually wins when playing against LeBlanc, with a 55.4% win rate. Thus, Kassadin makes a fantastic counter to LeBlanc.
While Kassadin does have a much higher win rate compared to LeBlanc, when facing one another, Kassadin also has a lower difficulty level that makes him a less complex champ to develop with. You don't need to be too worried when picking Kassadin into LeBlancas his relative depth means that you may not be able to reach his full potential without a significant amount of practice beforehand.
Furthermore, Kassadin has some amount of utility and CC, a similar amount to LeBlanc. This makes her just as valuable during team fights, especially when facing champions with a lot of burst damage.
While there is not one best champion for every situation in League of Legends, in Kassadin vs LeBlanc matchups, Kassadin is the better champion with a noticably higher win rate, less champion complexity, and a similar amount of utility to help out your allies during teamfights.
Kassadin is a great counter to LeBlanc. Focus your tactics on maximizing your CS and destroying objectives. If you are able to do that, you should be able to stand on your own as Kassadin against LeBlanc.
If you would like to truly master Kassadin to counter LeBlanc during both the early game and mid / late game phases of League of Legends, you should keep reading to pick up a few extra lessons on this matchup. If you pay attention to the build and stats presented here, you will increase your win rate by a lot and be closer to League of Legends pro players.
Kassadin often gets a similar amount of CS relative to LeBlanc. Champions who on average don't take much CS typically don't need much CS to be valuable teammates, such as supports. They are capable of scaling properly off of their skills, stats, and first items alone. Yet, champions with a lot of CS, such as hyper-carries, typically need many items to be effective. In either situation, try to surpass the numbers shown here to do well.
The most crucial items to prioritize in your Kassadin versus LeBlanc build include Seraph's Embrace, Malignance, and Zhonya's Hourglass. When Kassadin bought at least these three pieces in his build, he did much better when facing LeBlanc than with many other common builds. In fact, Kassadin boasted an average win rate of 55.4% when countering LeBlanc with these items in his kit.
To have the highest chance of beating LeBlanc as Kassadin, Kassadin players should equip the Fleet Footwork, Presence of Mind, Legend: Tenacity, Coup de Grace, Overgrowth, and Second Wind runes from the Precision and Resolve rune sets. Of all the rune builds players picked for Kassadin vs LeBlanc matchups, this mix of runes yielded the highest win rate. In fact, these runes provided a 55.4% winrate overall.
If you would like to get Kassadin versus LeBlanc tips and builds for a a distinct player tier, feel free to select one from the selection menu shown above. At first, the statistics and build suggestions shown are calculated using all matches with data with both champions.