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.
Stay behind minions to make Charm difficult to land, this will reduce Ahri's damage potential significantly.
Ahri's survivability is dramatically reduced when her Ultimate, Spirit Rush, is down.
The stats shown on this page clarify some valuable Kassadin versus Ahri counter stats that can help us grasp the distinctions between this set of champs. For instance, Kassadin’s KDA ratio ([kills + assists] / deaths) of NaN is better than Ahri’s KDA ratio of NaN, showing that Kassadin may be more central to his team's team fighting capacity than Ahri..
Kassadin typically has a similar longest killing spree as his opponent does. Commonly, he receives more damage than Ahri. This is usually reflective of different amounts of tankyness; however, it can also hint that the one champ has less mobility and thus is unable to escape additional damage when poked or engaged.
Both League of Legends champs are great. Both have their pros and cons. In the game's current meta, Kassadin usually fairs equally well when playing against Ahri, with a 50.7% win rate. Thus, Kassadin makes an ok counter to Ahri.
While Kassadin does have a higher winrate than Ahri, when they face off with one another, Kassadin also has a much greater difficulty level that makes him a more challenging character to develop with. You should be careful when picking Kassadin into Ahrias his relative depth means you may not be able to unleash his full potential without a lot of practice beforehand.
Furthermore, Kassadin has some amount of CC and other utility, a similar amount to Ahri. This makes her just as valuable during team fights, especially when fighting champions with a ton of burst damage.
While there isn't one best champion overall in League of Legends, in Kassadin vs Ahri matchups, Kassadin is the better champion with a similar win rate, more champion depth, and a similar amount of utility to help out your allies during teamfights.
Kassadin is a decent counter to Ahri. Make sure you focus your strategy on keeping up your gold income and destroying objectives. If you do that, you should do very well as Kassadin against Ahri.
If you would like to learn all of the intricacies of Kassadin to counter Ahri during both the laning and mid / late game phases of League of Legends, you should continue reading to pick up a few extra tricks and insights into this matchup. If you mind the build and stats displayed here, you will grow your win rate significantly and be that much closer to League of Legends pro players.
Kassadin often picks up a similar amount of CS as Ahri. Champs who on average don't get much CS often don't have to have much CS to be effective, such as support champions. They are able to scale well off of their abilities and first items alone. Yet, champs with a lot of CS, such as hyper-carries, typically need a lot of items to be effective. In either case, try to do better than the values reported on this page to do well.
The most important items to prioritize in your Kassadin versus Ahri build include Seraph's Embrace, Rabadon's Deathcap, and Rod of Ages. When Kassadin bought at least these three items in his build, he performed a lot better when fighting Ahri than with many other commonly used counter builds. In fact, Kassadin boasted an average win rate of 50.7% when playing against Ahri with this build.
To have the greatest likelihood of annihilating Ahri as Kassadin, you should take the Fleet Footwork, Presence of Mind, Legend: Tenacity, Coup de Grace, Overgrowth, and Second Wind runes from the Precision and Resolve rune sets. Out of all the runes that we analyzed for Kassadin vs Ahri face-offs, this blending of runes yielded the greatest win rate. In fact, these runes provided a 50.7% winrate overall.
By default, tips, stats, and builds on how to beat Ahri as Kassadin are shown for every ranked division. To filter the statistics and builds to a specific player tier, you can use the selection menu above.