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.
Killing Tentacles whenever possible will make it much easier to win a fight against Illaoi.
When your spirit gets pulled out, fight back if you can. Dealing damage to Illaoi reduces the spirit's duration.
Avoid grouping up for Leap of Faith to reduce the number of Tentacles available to Illaoi.
The stats shown here underscore several vital Kassadin against Illaoi matchup statistics that can help us realize the distinctions between this pair of champs. Kassadin’s KDA ratio ([kills + assists] / deaths) of NaN is better than Illaoi’s ratio of NaN, highlighting that Kassadin may be more central to his team's team fighting capability than Illaoi..
Kassadin usually has a slightly larger longest killing spree than his counter does. Typically, he receives less damage than Illaoi. This typically indicates differing health capacities, but it can also indicate that the one champ has less agility and thus is unable to flee from further damage when poked or engaged.
Both LoL champions are great. Both have their strengths, weaknesses, and counters. In the game's current meta, Kassadin usually fairs equally well when facing off against Illaoi, with a 49.3% win rate. Therefore, Kassadin makes an ok counter for Illaoi.
While Kassadin does have a lower winrate compared to Illaoi, when on opposite teams, Kassadin also has a much greater learning curve that makes him a more complex character to learn and master. You should be careful when picking Kassadin into Illaoias 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 Illaoi. This often makes her just as valuable during teamfights, especially when facing champions with a lot of burst damage.
While there is not a single best champion in League of Legends, in Kassadin vs Illaoi matchups, Illaoi 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 to Illaoi. You will do well by focussing your strategy on keeping up your gold income and destroying objectives. If you can do that, you should do very well as Kassadin against Illaoi.
To truly master Kassadin in order to counter Illaoi during both the laning and mid / late game phases of League of Legends, you should continue reading to learn a few extra lessons on this matchup. If you mind the build and suggestions shown here, you should grow your win rate by a lot and be closer to League of Legends pro players.
Kassadin typically accumulates a similar amount of CS as Illaoi. Champions who on average don't earn much CS typically don't have to have much CS to be valuable teammates, such as supports. These kinds of champions are able to scale well off of their skills, stats, and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, usually require several high cost items to be effective. In either case, try to exceed the values shown here to do well.
The most important items to prioritize in your Kassadin versus Illaoi build consist of Seraph's Embrace, Rabadon's Deathcap, and Malignance. When Kassadin bought at least these three items in his build, he performed significantly better when facing Illaoi than with many other typical item sets. In fact, Kassadin had an average win rate of 49.3% when countering Illaoi with this build.
To have the greatest likelihood of coming out on top against Illaoi as Kassadin, you 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. Out of all the rune sets that we analyzed for Kassadin vs Illaoi matchups, this mix of runes yielded the highest win rate. Notably, these runes averaged a 49.3% win rate overall.
By default, tips, statistics, and builds on how to beat Illaoi as Kassadin are given for all skill levels combined. To filter the statistics and builds to an individual skill level, you can use the selection menu located earlier on the page.