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.
Ahri's survivability is dramatically reduced when her Ultimate, Spirit Rush, is down.
Stay behind minions to make Charm difficult to land, this will reduce Ahri's damage potential significantly.
The stats shown on this page underscore some influential Amumu versus Ahri matchup stats that can help us realize the differences between the two. For instance, Amumu’s KDA ratio ([kills + assists] / deaths) of NaN is better than Ahri’s KDA ratio of NaN, demonstrating that Amumu may be more central to his team's team fighting capacity than Ahri..
Amumu typically has a similar longest kill spree as his enemy does. Typically, he receives more damage than Ahri. This typically indicates differing health capacities, but it can also indicate that the one champ has less mobility and thus is unable to flee from additional damage when poked or engaged.
Both League of Legends champions are great champions. Both champs have their pros and cons. In League's current meta, Amumu usually wins when trying to fight Ahri, with a 55.5% win rate. Thus, Amumu makes a fantastic counter to Ahri.
While Amumu does have a much higher winrate than Ahri, when they face off with one another, Amumu also has a lower level of difficulty that makes him a less challenging champ to develop with. You don't need to be too worried when picking Amumu into Ahri.
Furthermore, Amumu has a lot of CC and other utility, a similar amount to Ahri. This often makes her just as valuable during team fights, especially when fighting champions with a ton of burst damage.
While there isn't a single best champion for every situation in League of Legends, in Amumu vs Ahri matchups, Amumu is the better champion with a noticably higher win rate, less champion complexity, and a similar amount of utility to help out your allied champions during late stage team fights.
Amumu is a great counter for Ahri. Make sure you focus your gameplay on increasing your CS and destroying objectives. If you do that, you should do very well as Amumu against Ahri.
If you would like to learn all of the intricacies of Amumu in order to counter Ahri during both the laning 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 pay attention to the build and tips shown here, you will increase your win rate significantly and be closer to League of Legends pro players.
Amumu on average gets a lot less CS relative to Ahri. Champs who typically don't earn much CS usualy don't need much CS to be valuable teammates, such as sup champs. They are capable of scaling properly off of their abilities and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, often need several high cost items to be effective. In either case, try to exceed the values displayed on this page to do well.
The top items to use in your Amumu versus Ahri build include Sunfire Aegis, Force of Nature, and Demonic Embrace. When Amumu used at least these three items in his build, he did a lot better against Ahri than with most other typical builds. In fact, Amumu had an average winrate of 55.5% when countering Ahri with these items in his kit.
To have the best probability of vanquishing Ahri as Amumu, Amumu players should take the Conqueror, Triumph, Legend: Tenacity, Last Stand, Cheap Shot, and Treasure Hunter runes from the Precision and Domination rune sets. Of all the rune builds players used for Amumu vs Ahri fights, this mixture of runes resulted in the highest win rate. Notably, these runes gave a 55.5% winrate overall.
By default, tips, stats, and builds on how to beat Ahri as Amumu are shown for all skill levels combined. To scope the statistics and builds to a distinct rank, you can use the selection menu at the top of this page.