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.
Zed's Shadow Slash can only slow you if his shadow hits you with it.
Zed receives bonus effect from Attack Damage items he purchases, so Armor is super effective against him.
After Zed uses his Living Shadow, he is at his most vulnerable as his damage, slow, and mobility are both dependent upon it.
The stat comparisons shown on this page clarify some critical Kassadin versus Zed counter statistics that may help you understand the distinctions between the two. For instance, Kassadin’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Zed’s ratio of NaN, highlighting that Kassadin may be more central to his team's team fighting capability than Zed..
Kassadin typically has a slightly smaller longest kill spree than his foe does. Commonly, he takes more damage than Zed. This commonly reflects different amounts of tankyness; however, it can also imply that the champ with more HP has less agility and thus is not able to kite away from further damage when engaged or poked.
Both League champs are great champions. Both champs have their pros and cons. In the game's current meta, Kassadin usually loses when playing against Zed, with a 47.9% win rate. Therefore, Kassadin makes a bad counter for Zed.
While Kassadin does have a lower winrate compared to Zed, when facing one another, Kassadin also has a greater level of difficulty that makes him a more complex champ to learn. You may get destroyed when picking Kassadin into Zedas his relative depth means you may not be able to reach his full potential without a significant amount of practice beforehand.
Moreover, Kassadin has some amount of utility and CC, a similar amount to Zed. This 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 for every situation in League of Legends, in Kassadin vs Zed matchups, Zed is the better champion with a lower win rate, more champion depth, and a similar amount of utility to help out your teammates during team fights.
Kassadin is a garbage counter for Zed. Focus your gameplay on maximizing your gold and cs and clearing objectives. If you are able to do that, you should hold your own as Kassadin against Zed.
To truly master Kassadin to counter Zed during both the laning and mid / late game phases of League of Legends, you should keep reading to learn a few extra lessons on this matchup. If you pay attention to the build and stats shown above, you should grow your win rate significantly and be that much closer to League of Legends pro players.
Kassadin typically racks up a similar amount of CS as Zed. Champs who typically don't get many minion kills often don't need 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, typically have to have a lot of items to be effective. In either case, try to surpass the values displayed on this page to do well.
The best items to use in your Kassadin versus Zed build include Seraph's Embrace, Rabadon's Deathcap, and Malignance. When Kassadin combined at least these three items in his build, he performed much better versus Zed than with most other commonly used builds. In fact, Kassadin boasted an average winrate of 47.9% when playing against Zed with this build.
To have the highest probability of coming out on top against Zed as Kassadin, Kassadin players should use 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 builds players picked for Kassadin vs Zed fights, this composite of runes yielded the highest win rate. Notably, these runes gave a 47.9% win rate overall.
If you want to see Kassadin versus Zed tips and counter stats for a an individual skill level, feel free to select one from the selection menu above. If viewing for the first time, the statistics and strategies shown are computed using all rounds finished with these champs.