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.
Lee Sin relies heavily on following up with his abilities. Use disables to prevent him from chaining together his abilities and attacks.
Stay spread out to minimize the impact of Lee Sin's ultimate, Dragon's Rage.
Lee Sin has powerful tools to combat physical damage in Iron Will and Cripple but he is still vulnerable to magic damage.
The stats provided here show several critical Amumu vs. Lee Sin counter statistics that may help us understand the differences and similarities between this pair of champions. Amumu’s KDA ratio ([kills + assists] / deaths) of NaN is more than Lee Sin’s ratio of NaN, showing that Amumu may be more central to his team's team fighting capacity than Lee Sin..
Amumu often has a slightly smaller longest kill spree than his counter does. On average, he receives less damage than Lee Sin. This often reflects different amounts of tankyness, yet it can also imply that the one champion has less mobility and thus is unable to escape further damage when poked or engaged.
Both LoL champions are great champions. Both champs have their strengths, weaknesses, and counters. In League's current meta, Amumu usually wins when trying to fight Lee Sin, with a 52.4% win rate. As a result, Amumu makes a good counter to Lee Sin.
While Amumu does have a higher win rate compared to Lee Sin, when on opposite teams, Amumu also has a lower level of difficulty that makes him a less complex champion to pick up and master. You should be be fine when picking Amumu into Lee Sin.
Additionally, Amumu has a great deal of utility and CC, a similar amount to Lee Sin. This makes her just as valuable during teamfights, especially when trying to counter champions with a ton of burst damage.
While there isn't one best champion overall in League of Legends, in Amumu vs Lee Sin 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 teammates during late stage team fights.
Amumu is an above average counter for Lee Sin. Focus your play on keeping up your CS and taking out objectives. If you do that, you should do very well as Amumu against Lee Sin.
To truly master Amumu in order to counter Lee Sin during both the lane and mid / late game phases of League of Legends, you should continue reading to learn a few extra tips and tricks for this matchup. If you listen to the build and suggestions presented above, you should grow your win rate significantly and be that much closer to League of Legends pro players.
Amumu typically picks up a similar amount of CS as Lee Sin. Champs who on average don't earn many minion kills typically don't have to have much CS to be effective, such as supports. These kinds of champions are able to scale well off of their abilities and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, usually need several high cost items to be effective. In either case, try to exceed the numbers displayed on this page to do well.
The top items to use in your Amumu versus Lee Sin build consist of Sunfire Aegis, Thornmail, and Liandry's Torment. When Amumu used at least these three pieces in his build, he performed much better against Lee Sin than with most other common counter builds. In fact, Amumu had an average win rate of 52.4% when countering Lee Sin with these items in his kit.
To have the greatest likelihood of annihilating Lee Sin 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. Of all the rune builds we have analyed for Amumu vs Lee Sin face-offs, this mixture of runes yielded the highest win rate. In fact, these runes averaged a 52.4% winrate overall.
By default, tips, stats, and builds on how to beat Lee Sin as Amumu are given for all skill levels combined. If you want to filter the stats and builds to a specific player tier, you can use the selection menu located earlier in the counter matchup guide.