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.
The stat comparisons shown here feature some valuable Amumu vs. Senna counter stats that may help us interpret the distinctions between the two. As an example, Amumu’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Senna’s KDA ratio of NaN, showing that Amumu may be more central to his team's team fighting effectiveness than Senna..
Amumu normally has a similar longest killing spree as his counter does. Commonly, he takes more damage than Senna. This commonly reflects differing health capacities; however, it can also show that the champ with more HP has less agility and thus is not able to kite away from additional damage when poked or engaged.
Both League champions are great champions. Both champs have their pros and cons. In the game's current meta, Amumu usually loses when playing against Senna, with a 48.5% win rate. Therefore, Amumu makes a bad counter to Senna.
While Amumu does have a lower winrate compared to Senna, when facing one another, Amumu also has a much lower learning curve that makes him a less difficult character to pick up and master. You should be careful when picking Amumu into Senna.
Furthermore, Amumu has a lot of utility and CC, a similar amount to Senna. This makes her just as valuable during teamfights, especially when facing champions with a ton of burst damage.
While there isn't a single best champion overall in League of Legends, in Amumu vs Senna matchups, Senna is the better champion with a lower win rate, less champion complexity, and a similar amount of utility to help out your team members during late stage team fights.
Amumu is a somewhat poor counter for Senna. Focus your tactics on keeping up your gold income and destroying objectives. If you are able to do that, you should do very well as Amumu against Senna.
To truly master Amumu in order to counter Senna during both the laning and mid / late game phases of League of Legends, you should continue reading to gather a few extra lessons on this matchup. If you listen to the build and suggestions presented above, you will increase your win rate by a lot and be closer to League of Legends pro players.
Amumu usually gets less CS relative to Senna. Champs who on average don't take much CS typically don't require much CS to be effective, such as support champions. They are able to scale properly off of their skills, stats, and first items alone. Yet, champs with a lot of CS, such as hyper-carries, usually require many items to be effective. In either situation, try to exceed the numbers reported on this page to do well.
The top items to have in your Amumu versus Senna build include Thornmail, Hollow Radiance, and Jak'Sho, The Protean. When Amumu included at least these three items in his build, he did much better vs. Senna than with most other common builds. In fact, Amumu boasted an average winrate of 48.5% when countering Senna with this counter build.
To have the best likelihood of vanquishing Senna as Amumu, Amumu players should use the Aftershock, Font of Life, Bone Plating, Unflinching, Cheap Shot, and Ultimate Hunter runes from the Resolve and Domination rune sets. Out of all the runes players chose for Amumu vs Senna fights, this sequence of runes yielded the greatest win rate. Moreover, these runes provided a 48.5% win rate overall.
If you need to get Amumu versus Senna tips and counter builds for a a specific division, feel free to choose one from the selection menu shown above. At first, the stats and guides given are calculated using every game completed with both champs.