If you're in a lane against ranged players, leveling up Meditate can allow you to stay in the lane longer and gain levels faster than they will.
Try using Alpha Strike on a minion in front of an enemy champion so you are placed at a safe distance at the end of the spell.
Wuju Style is very strong early for last hitting minions.
It takes 6 spell casts for Kassadin's slow, Force Pulse, to become castable. If he levels up that ability, judiciously use your own skills while laning against him.
Kassadin deals mostly magic damage. If he's doing well consider buying magic resist items like Mercury's Treads and Banshee's Veil.
Each time Kassadin consecutively uses Riftwalk, he pays more and more mana. Keep this in mind as you chase him.
The stat comparisons shown here highlight some vital Master Yi versus Kassadin counter statistics that may help us understand the differences and similarities between the pair. For instance, Master Yi’s KDA ratio ([kills + assists] / deaths) of NaN is more than Kassadin’s ratio of NaN, showing that Master Yi may be more central to his team's team fighting potential than Kassadin..
Master Yi typically has a slightly larger longest killing spree than his opponent does. Commonly, he takes a similar amount of damage to Kassadin. This often reflects differing health capacities, yet it can also show that the one champion has less agility and thus is unable to kite away from further damage when engaged or poked.
Both League of Legends champions are great. Both champs have their strengths, weaknesses, and counters. In the game's current meta, Master Yi usually wins when taking on Kassadin, with a 53.6% win rate. Thus, Master Yi makes a great counter to Kassadin.
While Master Yi does have a higher winrate compared to Kassadin, when on opposite teams, Master Yi also has a much lower difficulty level that makes him a less time consuming champion to learn and master. You should be be fine when picking Master Yi into Kassadin.
Moreover, Master Yi also has only a small amount of utility and CC, a similar amount to Kassadin. This often makes her just as valuable during team fights, especially when trying to counter champions with a ton of burst damage.
While there isn't a single best champion overall in League of Legends, in Master Yi vs Kassadin matchups, Master Yi is the better champion with a noticably higher win rate, less champion complexity, and a similar amount of utility to help out your teammates during late stage team fights.
Master Yi is a great counter to Kassadin. Make sure you focus your gameplay on maximizing your gold and cs and clearing objectives. If you are able to do that, you should be able to stand on your own as Master Yi against Kassadin.
If you would like to truly master Master Yi to counter Kassadin during both the early game and mid / late game phases of League of Legends, you should keep reading to pick up a few extra lessons on this matchup. If you listen to the build and tips presented above, you will increase your win rate by a lot and be that much closer to League of Legends pro players.
Master Yi usually picks up a lot less CS relative to Kassadin. Champs who typically don't get much CS typically don't have to have much CS to be effective, such as sup champs. These kinds of champions are capable of scaling well off of their skills, stats, and first items alone. Yet, champs with a lot of CS, such as hyper-carries, often require many items to be effective. In either situation, try to do better than the numbers shown here to do well.
The best items to prioritize in your Master Yi versus Kassadin build include Guardian Angel, Wit's End, and Blade of The Ruined King. When Master Yi used at least these three pieces in his build, he did a lot better vs Kassadin than with many other typical item sets. In fact, Master Yi had an average win rate of 53.6% when playing against Kassadin with this build.
To have the best likelihood of annihilating Kassadin as Master Yi, Master Yi players should use the Lethal Tempo, Triumph, Legend: Alacrity, Coup de Grace, Eyeball Collection, and Relentless Hunter runes from the Precision and Domination rune sets. Out of all the rune sets players used for Master Yi vs Kassadin counter picks, this order of runes yielded the highest win rate. Notably, these runes gave a 53.6% winrate overall.
By default, tips, stats, and builds on how to beat Kassadin as Master Yi are presented for all skill levels combined. If you would like to narrow the statistics and builds to a particular skill level, you should use the selection menu located above.