Hitting multiple champions with the same ability can help quickly activate Darkness Rise.
Offense is your defense. Keep fighting to build up larger Indestructible shields.
Use Realm of Death on a low health enemy to guarantee the kill and keep their stats for the rest of a teamfight.
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 stats provided here feature several vital Mordekaiser vs. Kassadin counter stats that can help us interpret the differences and similarities between the pair. As an example, Mordekaiser’s KDA ratio ([kills + assists] / deaths) of NaN is better than Kassadin’s ratio of NaN, indicating that Mordekaiser may be more central to his team's team fighting capability than Kassadin..
Mordekaiser typically has a similar longest killing spree as his matchup does. On average, he receives a similar amount of damage to Kassadin. This is usually reflective of differing health capacities, but it can also imply that the one champ has less mobility and thus is unable to escape additional harm when poked or engaged.
Both LoL champs are great. Both champs have their pros and cons. In League's current meta, Mordekaiser usually wins when trying to fight Kassadin, with a 53.5% win rate. Therefore, Mordekaiser makes a great counter for Kassadin.
While Mordekaiser does have a higher winrate compared to Kassadin, when on opposite teams, Mordekaiser also has a much lower level of difficulty that makes him a less time consuming champ to develop with. You don't need to be too worried when picking Mordekaiser into Kassadin.
Furthermore, Mordekaiser also has some amount of CC and other utility, a similar amount to Kassadin. This often 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 in League of Legends, in Mordekaiser vs Kassadin matchups, Mordekaiser is the better champ with a noticably higher win rate, less champion complexity, and a similar amount of utility to help out your allied champions during teamfights.
Mordekaiser is a great counter for Kassadin. Make sure you focus your play on maximizing your gold income and taking out objectives. If you are able to do that, you should do very well as Mordekaiser against Kassadin.
If you would like to truly master Mordekaiser in order to counter Kassadin during both the lane and mid / late game phases of League of Legends, you should continue reading to pick up a few extra tips and tricks for this matchup. If you mind the build and tips displayed here, you will grow your win rate by a lot and be closer to League of Legends pro players.
Mordekaiser typically racks up a similar amount of CS relative to Kassadin. Champs who typically don't earn much CS typically don't need much CS to be effective, such as supports. They 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, often require a lot of items to be effective. In either case, try to surpass the numbers displayed on this page to do well.
The most crucial items to prioritize in your Mordekaiser versus Kassadin build consist of Nashor's Tooth, Rylai's Crystal Scepter, and Riftmaker. When Mordekaiser included at least these three pieces in his build, he performed a lot better vs Kassadin than with many other common counter builds. In fact, Mordekaiser boasted an average winrate of 53.5% battling Kassadin with this counter build.
To have the best chance of crushing Kassadin as Mordekaiser, Mordekaiser players should take the Conqueror, Triumph, Legend: Alacrity, Last Stand, Second Wind, and Revitalize runes from the Precision and Resolve rune sets. Of all the rune combinations players picked for Mordekaiser vs Kassadin matchups, this mixture of runes yielded the highest win rate. Notably, these runes gave a 53.5% winrate overall.
By default, tips, statistics, and builds on how to beat Kassadin as Mordekaiser are given for every ranked division. If you want to scope the stats and builds to a particular skill level, you may use the selection menu located earlier in the counter matchup guide.