Amumu is highly dependent on teammates, so try laning with your friends for maximum effectiveness.
Despair is very effective against other tanks, so make sure you're in range of opponents with the highest Health.
Cooldown Reduction on Amumu is very strong, but it's often difficult to itemize for it. Grab the Golem buff whenever possible to gain Cooldown Reduction without sacrificing stats.
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 shown on this page underscore some influential Amumu versus Kassadin counter statistics that may help us realize the differences and similarities between the pair. As an example, Amumu’s KDA ratio ([kills + assists] / deaths) of NaN is better than Kassadin’s ratio of NaN, demonstrating that Amumu may be more central to his team's team fighting effectiveness than Kassadin. This observation is in large part fueled by the differences in assists.
Amumu usually has a slightly smaller longest kill spree than his matchup does. On average, he takes a similar amount of damage to Kassadin. This commonly reflects differing health capacities; however, it can also indicate that the one champion has less agility and thus is not able to flee from additional harm when poked or engaged.
Both League champs are great champions. Both have their pros and cons. In League's current meta, Amumu usually loses when facing off against Kassadin, with a 46.5% win rate. Thus, Amumu makes a poor counter to Kassadin.
While Amumu does have a lower winrate compared to Kassadin, when facing one another, Amumu also has a much lower learning curve that makes him a less complex champ to pick up and master. You should be very concerned when picking Amumu into Kassadin.
Furthermore, Amumu also has a lot of utility and CC, a similar amount to Kassadin. This makes her just as valuable during teamfights, especially when facing champions with a ton of burst damage.
While there isn't one best champion for every situation in League of Legends, in Amumu vs Kassadin matchups, Kassadin is the better champion with a much lower win rate, less champion complexity, and a similar amount of utility to help out your allied champions during team fights.
Amumu is a bad counter to Kassadin. Focus your gameplay on increasing your gold and cs and taking out objectives. If you do that, you should be able to stand on your own as Amumu against Kassadin.
If you would like to truly master Amumu to counter Kassadin during both the lane and mid / late game phases of League of Legends, you should continue reading to gather a few extra tips and tricks for this matchup. If you mind the build and stats displayed here, you will increase your win rate significantly and be that much closer to League of Legends pro players.
Amumu on average accumulates a lot less CS relative to Kassadin. Champions who on average don't acquire much CS often don't have to have much CS to be valuable teammates, such as sup champs. These kinds of champions are capable of scaling properly off of their abilities and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, usually have to have a lot of items to be effective. In either situation, try to do better than the values displayed on this page to do well.
The most crucial items to have in your Amumu versus Kassadin build include Jak'Sho, The Protean, Sunfire Aegis, and Demonic Embrace. When Amumu bought at least these three items in his build, he performed much better vs Kassadin than with most other typical counter builds. In fact, Amumu had an average winrate of 46.5% when countering Kassadin with this counter build.
To have the greatest probability of defeating Kassadin as Amumu, you should take the Conqueror, Triumph, Legend: Tenacity, Last Stand, Cheap Shot, and Ultimate Hunter runes from the Precision and Domination rune sets. Out of all the runes we have analyed for Amumu vs Kassadin clashes, this combination of runes yielded the highest win rate. Moreover, these runes provided a 46.5% win rate overall.
By default, tips, statistics, and builds on how to beat Kassadin as Amumu are displayed for all skill levels combined. If you would like to filter the stats and builds to a particular rank, you can use the selection menu located earlier in the counter matchup guide.