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.
The stat comparisons shown here feature several important Amumu versus Zeri counter statistics that can help us distinguish the differences and similarities between the pair. Amumu’s KDA ratio ([kills + assists] / deaths) of NaN is better than Zeri’s ratio of NaN, highlighting that Amumu may be more central to his team's team fighting capability than Zeri. This observation is largely caused by the differences in assists.
Amumu often has a slightly smaller longest killing spree than his matchup does. On average, he receives more damage than Zeri. This often reflects different amounts of tankyness, but it can also show that the one champ has less mobility and thus is not able to flee from further harm when engaged or poked.
Both LoL champs are great. Both have their strengths, weaknesses, and counters. In the game's current meta, Amumu usually wins when facing off against Zeri, with a 56.9% win rate. Thus, Amumu makes a fantastic counter to Zeri.
While Amumu does have a much higher win rate compared to Zeri, when on opposite teams, Amumu also has a lower learning curve that makes him a less difficult character to learn and master. You should be be fine when picking Amumu into Zeri.
Additionally, Amumu has a great deal of utility and CC, a similar amount to Zeri. This often makes her just as valuable during teamfights, especially when facing champions with a lot of burst damage.
While there is not one best champion in League of Legends, in Amumu vs Zeri matchups, Amumu is the better champ with a noticably higher win rate, less champion complexity, and a similar amount of utility to help out your team members during teamfights.
Amumu is a great counter to Zeri. You will do well by focussing your tactics on keeping up your CS and destroying objectives. If you do that, you should hold your own as Amumu against Zeri.
To truly master Amumu to counter Zeri during both the laning and mid / late game phases of League of Legends, you should continue reading to pick up a few extra tricks and insights into this matchup. If you listen to the build and stats shown here, you will increase your win rate significantly and be that much closer to League of Legends pro players.
Amumu typically accumulates a lot less CS relative to Zeri. Champions who typically don't get much CS usualy don't have to have much CS to be effective, such as sup champs. These kinds of champions are capable of scaling well off of their abilities and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, typically have to have several high cost items to be effective. In either situation, try to do better than the values shown here to do well.
The ideal items to have in your Amumu versus Zeri build include Evenshroud, Zhonya's Hourglass, and Bulwark of the Mountain. When Amumu incorporated at least these three pieces in his build, he did much better countering Zeri than with many other common builds. In fact, Amumu boasted an average win rate of 56.9% battling Zeri with this counter build.
To have the greatest probability of vanquishing Zeri as Amumu, Amumu players should use the Conqueror, Triumph, Legend: Tenacity, Last Stand, Cheap Shot, and Treasure Hunter runes from the Precision and Domination rune sets. Of all the runes players used for Amumu vs Zeri matchups, this composite of runes resulted in the greatest win rate. In fact, these runes provided a 56.9% win rate overall.
If you want to view Amumu x Zeri tips and matchup stats and build suggestions for a a particular player tier, feel free to select one from the selection menu shown above. If viewing for the first time, the statistics and build suggestions shown are calculated using all rounds played with these champions.