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.
Be careful when casting immobilizing disables on Fiora. If her Riposte is available, she can turn their power against you.
Duelist's Dance shows you where Fiora will try to attack from, so be ready to punish her when she tries.
The stat comparisons provided here underscore several important Kassadin versus Fiora matchup statistics that may help us understand the differences between this pair of champions. As an example, Kassadin’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Fiora’s KDA ratio of NaN, demonstrating that Kassadin may be more central to his team's team fighting capacity than Fiora..
Kassadin normally has a slightly larger longest killing spree than his enemy does. On average, he takes a similar amount of damage to Fiora. This commonly reflects different amounts of tankyness, but it can also show that the champ with higher health has less agility and thus is unable to escape additional damage when engaged or poked.
Both LoL champions are great. Both champs have their pros and cons. In League's current meta, Kassadin usually fairs equally well when playing against Fiora, with a 49.9% win rate. Thus, Kassadin makes an ok counter for Fiora.
While Kassadin does have a lower winrate compared to Fiora, when they face off with one another, Kassadin also has a much greater learning curve that makes him a more challenging character to pick up and master. You still need to be cautious when picking Kassadin into Fioraas his relative depth means that you may not be able to reach his full potential without a significant amount of practice beforehand.
Furthermore, Kassadin also has some amount of CC and other utility, a similar amount to Fiora. This makes her just as valuable during teamfights, especially when fighting champions with a lot of burst damage.
While there is not a single best champion in League of Legends, in Kassadin vs Fiora matchups, Fiora 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 somewhat poor counter to Fiora. Make sure you focus your gameplay on keeping up your CS and taking out objectives. If you can do that, you should do very well as Kassadin against Fiora.
To learn all of the intricacies of Kassadin in order to counter Fiora 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 pay attention to the build and suggestions shown above, you should grow your win rate by a lot and be closer to League of Legends pro players.
Kassadin usually racks up a similar amount of CS compared to Fiora. Champions who typically don't get much CS typically don't require much CS to be effective, such as sup champs. These kinds of champions are capable of scaling properly off of their skills, stats, 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 situation, try to surpass the values displayed here to do well.
The most important items to prioritize in your Kassadin versus Fiora build include Seraph's Embrace, Rabadon's Deathcap, and Malignance. When Kassadin incorporated at least these three pieces in his build, he performed significantly better countering Fiora than with many other typical counter builds. In fact, Kassadin had an average win rate of 49.9% when playing against Fiora with these items in his kit.
To have the best chance of annihilating Fiora as Kassadin, Kassadin players 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 rune combinations players used for Kassadin vs Fiora battles, this combo of runes yielded the highest win rate. Notably, these runes provided a 49.9% winrate overall.
By default, tips, stats, and builds on how to beat Fiora as Kassadin are given for all skill levels combined. If you would like to scope the stats and builds to a particular skill level, you can use the selection menu earlier on the page.