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.
Taste Their Fear deals bonus damage to targets that are isolated. Gain an advantage by fighting near allied minions, champions, or turrets.
Leap and Void Assault have long cooldowns. Kha'Zix is very vulnerable when these are not available.
The stat comparisons shown here show some important Kassadin vs. Kha'Zix matchup stats that can help us realize the distinctions between the pair. Kassadin’s KDA ratio ([kills + assists] / deaths) of NaN is better than Kha'Zix’s ratio of NaN, indicating that Kassadin may be more central to his team's team fighting capability than Kha'Zix..
Kassadin typically has a similar longest kill spree as his enemy does. Typically, he takes less damage than Kha'Zix. This commonly reflects different amounts of tankyness, but it can also show that the champion with higher health has less agility and thus is unable to kite away from additional damage when engaged or poked.
Both LoL champs are great champions. Both champs have their pros and cons. In the game's current meta, Kassadin usually loses when trying to fight Kha'Zix, with a 48.5% win rate. Therefore, Kassadin makes a poor counter for Kha'Zix.
While Kassadin does have a lower winrate compared to Kha'Zix, when facing one another, Kassadin also has a greater difficulty level that makes him a more difficult champion to pick up and master. You should be careful when picking Kassadin into Kha'Zixas his relative depth means you may not be able to reach his full potential without a significant amount of practice beforehand.
Additionally, Kassadin has some amount of utility and CC, a similar amount to Kha'Zix. This often makes her just as valuable during team fights, especially when facing champions with a lot of burst damage.
While there is not a single best champion overall in League of Legends, in Kassadin vs Kha'Zix matchups, Kha'Zix is the better champion with a lower 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 Kha'Zix. Focus your actions on keeping up your gold and cs and taking out objectives. If you can do that, you should be able to stand on your own as Kassadin against Kha'Zix.
If you would like to truly master Kassadin in order to counter Kha'Zix during both the laning and mid / late game phases of League of Legends, you should keep reading to learn a few extra tips and tricks for this matchup. If you mind the build and stats displayed above, you should increase your win rate by a lot and be closer to League of Legends pro players.
Kassadin on average racks up much more CS compared to Kha'Zix. Champs who on average don't get much CS typically don't need much CS to be effective, such as sup champs. These kinds of champions are capable of scaling properly off of their abilities and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, often need several high cost items to be effective. In either situation, try to surpass the numbers displayed here to do well.
The best items to use in your Kassadin versus Kha'Zix build include Seraph's Embrace, Rabadon's Deathcap, and Malignance. When Kassadin included at least these three pieces in his build, he performed much better countering Kha'Zix than with most other typical builds. In fact, Kassadin boasted an average win rate of 48.5% battling Kha'Zix with this counter build.
To have the best chance of vanquishing Kha'Zix 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 runes that we analyzed for Kassadin vs Kha'Zix matchups, this mix of runes yielded the highest win rate. Moreover, these runes provided a 48.5% win rate overall.
If you need to see Kassadin vs Kha'Zix tips and counter stats for a a distinct division rank, feel free to select one from the selection menu displayed above. If viewing for the first time, the statistics and guides given are calculated using all rounds completed with both champions.