Defiant Dance is not interrupted by crowd control, try timing it for incoming disables.
Flawless Duet does not have a maximum travel distance, try using it in creative ways.
Use Bladesurge to cover great distances by targeting low life minions on your way to champion targets.
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 on this page emphasize some important Irelia against Kassadin counter stats that may help us distinguish the distinctions between the pair. Irelia’s KDA ratio ([kills + assists] / deaths) of NaN is more than Kassadin’s ratio of NaN, highlighting that Irelia may be more central to her team's team fighting potential than Kassadin..
Irelia usually has a similar longest kill spree as her opponent does. Commonly, she receives a similar amount of damage to Kassadin. This commonly reflects differing health capacities; however, it can also illustrate that the champion with increased HP has less mobility and thus is not able to kite away from further harm when engaged or poked.
Both League champs are great. Both champs have their pros and cons. In League's current meta, Irelia usually fairs equally well when trying to fight Kassadin, with a 50.7% win rate. Therefore, Irelia makes an ok counter to Kassadin.
While Irelia does have a higher winrate than Kassadin, when on opposite teams, Irelia also has a lower learning curve that makes her a less difficult character to pick up and master. You still need to be cautious when picking Irelia into Kassadin.
Furthermore, Irelia also has some amount of CC and other utility, a similar amount to Kassadin. This makes her just as valuable during team fights, especially when fighting champions with a lot of burst damage.
While there is not one best champion in League of Legends, in Irelia vs Kassadin matchups, Irelia is the better champion with a similar win rate, less champion complexity, and a similar amount of utility to help out your teammates during team fights.
Irelia is a decent counter for Kassadin. You will do well by focussing your play on maximizing your CS and clearing objectives. If you are able to do that, you should hold your own as Irelia against Kassadin.
If you would like to learn all of the intricacies of Irelia in order to counter Kassadin during both the lane and mid / late game phases of League of Legends, you should keep reading to learn a few extra lessons on this matchup. If you listen to the build and tips shown above, you should increase your win rate by a lot and be that much closer to League of Legends pro players.
Irelia usually picks up a similar amount of CS relative to Kassadin. Champions who typically don't acquire many minion kills often don't have to have much CS to be effective, such as sup champs. These kinds of champions are able to scale properly off of their abilities and first items alone. Yet, champs with a lot of CS, such as hyper-carries, often need a lot of items to be effective. In either situation, try to do better than the numbers displayed on this page to do well.
The most important items to prioritize in your Irelia versus Kassadin build include Guardian Angel, Wit's End, and Blade of The Ruined King. When Irelia incorporated at least these three pieces in her build, she did a lot better when fighting Kassadin than with most other typical counter builds. In fact, Irelia boasted an average winrate of 50.7% when countering Kassadin with these items in her kit.
To have the greatest chance of crushing Kassadin as Irelia, you should use the Conqueror, Triumph, Legend: Alacrity, Last Stand, Biscuit Delivery, and Cosmic Insight runes from the Precision and Inspiration rune sets. Out of all the rune sets players used for Irelia vs Kassadin matchups, this blending of runes resulted in the best win rate. In fact, these runes averaged a 50.7% win rate overall.
By default, tips, statistics, and builds on how to beat Kassadin as Irelia are presented for all ranked divisions. If you would like to scope the stats and builds to a distinct player tier, you may use the selection menu above.