Despair is very effective against other tanks, so make sure you're in range of opponents with the highest Health.
Amumu is highly dependent on teammates, so try laning with your friends for maximum effectiveness.
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.
Mordekaiser builds up a powerful damage aura when fighting champions, so keep your distance.
Realm of Death will cut you off from your teammates completely. Try to save mobility spells to escape Mordekaiser once inside
Damage he deals can be converted into a large shield, and consumed for health
The stat comparisons shown on this page show some valuable Amumu vs. Mordekaiser matchup statistics that may help you explain the differences and similarities between the pair. For instance, Amumu’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Mordekaiser’s KDA ratio of NaN, highlighting that Amumu may be more central to his team's team fighting capability than Mordekaiser. This observation is in large part fueled by the differences in assists.
Amumu usually has a significantly smaller longest killing spree than his matchup does. On average, he takes a similar amount of damage to Mordekaiser. This typically indicates differing health capacities; however, it can also show that the champ with higher health has less agility and thus is not able to escape further damage when poked or engaged.
Both League champions are great. Both have their strengths, weaknesses, and counters. In the game's current meta, Amumu usually loses when facing off against Mordekaiser, with a 43.3% win rate. Thus, Amumu makes a poor counter for Mordekaiser.
While Amumu does have a much lower win rate than Mordekaiser, when they face off with one another, Amumu also has a lower difficulty level that makes him a less difficult champ to learn and master. You should expect to face a difficult match when picking Amumu into Mordekaiser.
Furthermore, Amumu has a great deal of utility and CC, a similar amount to Mordekaiser. This makes her just as valuable during team fights, especially when facing champions with a ton of burst damage.
While there isn't one best champion overall in League of Legends, in Amumu vs Mordekaiser matchups, Mordekaiser 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 Mordekaiser. You will do well by focussing your strategy on increasing your gold income and destroying objectives. If you are able to do that, you should do very well as Amumu against Mordekaiser.
If you would like to truly master Amumu to counter Mordekaiser during both the lane 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 pay attention to the build and stats displayed above, you will increase your win rate significantly and be closer to League of Legends pro players.
Amumu most often picks up a lot less CS as Mordekaiser. Champions who on average don't get much CS usualy don't need much CS to be valuable teammates, such as supports. They are able to scale properly off of their abilities and first items alone. Yet, champions with a lot 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 numbers displayed on this page to do well.
The top items to use in your Amumu versus Mordekaiser build include Kaenic Rookern, Sunfire Aegis, and Jak'Sho, The Protean. When Amumu combined at least these three pieces in his build, he did a lot better versus Mordekaiser than with most other common item sets. In fact, Amumu had an average winrate of 43.3% when countering Mordekaiser with these items in his kit.
To have the best chance of coming out on top against Mordekaiser as Amumu, Amumu players should use the Conqueror, Triumph, Legend: Tenacity, Last Stand, Cheap Shot, and Ultimate Hunter runes from the Precision and Domination rune sets. Of all the runes we have analyed for Amumu vs Mordekaiser counters, this blending of runes resulted in the greatest win rate. Notably, these runes gave a 43.3% win rate overall.
By default, tips, statistics, and builds on how to beat Mordekaiser as Amumu are displayed for every ranked division. If you want to filter the stats and builds to a specific skill level, you should use the selection menu located earlier in the counter matchup guide.