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 stats shown here show several critical Vex versus Kassadin counter statistics that can help us appreciate the distinctions between the two. For instance, Vex’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Kassadin’s ratio of NaN, indicating that Vex may be more central to their team's team fighting effectiveness than Kassadin..
Vex often has a similar longest killing spree as their counter does. Typically, they takes less damage than Kassadin. This typically indicates different amounts of tankyness, yet it can also hint that the champion with higher health has less mobility and thus is unable to escape further damage when engaged or poked.
Both League of Legends champs are great. Both have their strengths, weaknesses, and counters. In the game's current meta, Vex usually loses when taking on Kassadin, with a 48.0% win rate. Therefore, Vex makes a poor counter for Kassadin.
While Vex does have a lower win rate than Kassadin, when facing one another, Vex also has a much lower difficulty level that makes them a less difficult champion to develop with. You should be very concerned when picking Vex into Kassadin.
Additionally, Vex also has some amount of CC and other utility, a similar amount to Kassadin. This often makes her just as valuable during teamfights, especially when fighting champions with a ton of burst damage.
While there is not a single best champion for every situation in League of Legends, in Vex 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 team members during late stage team fights.
Vex is a bad counter for Kassadin. Focus your strategy on keeping up your CS and destroying objectives. If you can do that, you should be able to stand on your own as Vex against Kassadin.
To learn all of the intricacies of Vex in order to counter Kassadin during both the early game and mid / late game phases of League of Legends, you should keep reading to pick up a few extra tricks and insights into this matchup. If you mind the build and tips shown here, you will increase your win rate by a lot and be that much closer to League of Legends pro players.
Vex on average accumulates a similar amount of CS as Kassadin. Champions who on average don't earn much CS often don't need much CS to be effective, such as sup champs. These kinds of champions are able to scale well off of their abilities and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, usually have to have many items to be effective. In either situation, try to do better than the values shown on this page to do well.
The top items to use in your Vex versus Kassadin build include Zhonya's Hourglass, Stormsurge, and Luden's Companion. When Vex bought at least these three pieces in their build, they did a lot better versus Kassadin than with most other common builds. In fact, Vex boasted an average winrate of 48.0% battling Kassadin with this build.
To have the greatest chance of coming out on top against Kassadin as Vex, you should use the Electrocute, Taste of Blood, Eyeball Collection, Ultimate Hunter, Manaflow Band, and Transcendence runes from the Domination and Sorcery rune sets. Of all the rune combinations players used for Vex vs Kassadin counters, this mix of runes yielded the highest win rate. Notably, these runes gave a 48.0% winrate overall.
If you need to see Vex vs Kassadin tips and counter stats for a a particular skill level, please select one from the selection menu provided above. By default, the statistics and guides shown are computed using all games completed with these champs.