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.
Try to engage him in short bursts instead of going toe-to-toe with him. Preventing him from attacking consecutively drastically lowers his damage output.
Jax can dodge all incoming attacks for a very short amount of time and stuns enemies in melee range when it ends. Wait to strike him until after his dodge is finished.
The stat comparisons shown here underscore several influential Kassadin against Jax matchup statistics that can help you figure out the differences and similarities between this pair of champions. For instance, Kassadin’s KDA ratio ([kills + assists] / deaths) of NaN is more than Jax’s ratio of NaN, demonstrating that Kassadin may be more central to his team's team fighting capability than Jax..
Kassadin usually has a similar longest kill spree as his matchup does. On average, he receives a similar amount of damage to Jax. This is usually reflective of differing health capacities, yet it can also hint that the one champion has less agility and thus is not able to escape further harm when poked or engaged.
Both League of Legends champions are great champions. Both have their pros and cons. In the game's current meta, Kassadin usually fairs equally well when trying to fight Jax, with a 49.5% win rate. Thus, Kassadin makes an ok counter to Jax.
While Kassadin does have a lower winrate compared to Jax, when on opposite teams, Kassadin also has a much greater level of difficulty that makes him a more time consuming character to learn and master. You still need to be cautious when picking Kassadin into Jaxas his relative depth means that you may not be able to unleash his full potential without a significant amount of practice beforehand.
Furthermore, Kassadin has some amount of utility and CC, a similar amount to Jax. This often 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 overall in League of Legends, in Kassadin vs Jax matchups, Jax is the better champ with a similar win rate, more champion depth, and a similar amount of utility to help out your team members during team fights.
Kassadin is a somewhat poor counter for Jax. Focus your strategy on maximizing your CS and taking out objectives. If you are able to do that, you should hold your own as Kassadin against Jax.
If you would like to learn all of the intricacies of Kassadin to counter Jax during both the laning and mid / late game phases of League of Legends, you should keep reading to learn a few extra tricks and insights into this matchup. If you listen to the build and stats shown here, you will increase your win rate by a lot and be that much closer to League of Legends pro players.
Kassadin typically picks up a similar amount of CS relative to Jax. Champions who on average don't acquire many minion kills often don't require much CS to be valuable teammates, such as sup champs. These kinds of champions are able to scale properly off of their abilities and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, often require several high cost items to be effective. In either case, try to do better than the values reported here to do well.
The ideal items to prioritize in your Kassadin versus Jax build consist of Malignance, Zhonya's Hourglass, and Rod of Ages. When Kassadin combined at least these three items in his build, he did a lot better countering Jax than with most other common builds. In fact, Kassadin boasted an average winrate of 49.5% when countering Jax with this build.
To have the greatest probability of beating Jax 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. Of all the rune combinations we have analyed for Kassadin vs Jax face-offs, this set of runes resulted in the greatest win rate. Moreover, these runes gave a 49.5% win rate overall.
By default, tips, stats, and builds on how to beat Jax as Kassadin are displayed for all ranked divisions combined. To narrow the stats and builds to a specific skill level, you can use the selection menu located earlier on the page.