Lead your enemy when targeting with Noxious Blast to ensure the hit.
Use Twin Fang on poisoned stationary targets like monsters and units stunned by her Petrifying Gaze for maximum damage.
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 Cassiopeia Amumu synergy stats shown here demonstrate the areas of her gameplay that do better (or worse) when paired with Amumu, compared to her overall stats. Significant differences are areas of focus that highlight how her gameplay changes when paired with this other champion.
Overall, Cassiopeia sees a large worsening in her KDA (ratio of kills and assists to deaths) when paired with Amumu. His KDA fell from NaN to NaN. This negative change shows that Amumu helps Cassiopeia perform worse in ranked League of Legends rounds. Yet, the small difference proves that this performance change is not very impactful.
When Cassiopeia tries to synergize with Amumu, she observes a little increase in her full damage dealt. This may signal that Amumu supports by providing protection for her to deal more damage or that his support also helps increase the game's duration. Similarly, when Cassiopeia is played with Amumu on the same side, he usually scores many fewer killing sprees compared to when she plays alone. This is contrasting evidence that she is worse when playing synergisticly with Amumu.
Additionally, when Cassiopeia plays with Amumu on the same team, she on average takes a little more damage than when she plays alone. Taking more damage may mean that Amumu does a poor job of covering Cassiopeia in team fights.
There is no perfect champion pairing for Cassiopeia that will always be her best synergy. Yet, Amumu is a good companion for Cassiopeia. By locking into the same team as Cassiopeia, he improves their win rate by 1.8% to 52.1%. This demonstrates that there is a good bond between Cassiopeia and Amumu that results in them performing at the top of their game together than alone.
Amumu has a much lower diffuclty than Cassiopeia. That means you don't need to be careful when finding Amumu allies to go into battle on the same side as, as they will need a much lower level of skill to be able to work well with you.
Working alongside, you will likely observe an overall large increase in your team’s capacity to deal magic damage. Together, these champs are able to dish out a surprising amount of magic type damage.
In contrast, by pairing Cassiopeia and Amumu together, you probably will not be granting your other allies enough attack damage. We recommend you include other champs on your team that nullifies this hole in this pairing's kit.
Regardless of your Amumu ally's skill level, you should focus on increasing your income, warding to avoid ambushes, and taking down objectives. If you heed this simple advice, you will do well anyway.
If you would like to truly master Cassiopeia to pair well with Amumu during both the lane and mid / late game phases of League games, you should continue reading to gather a few extra tips and tricks for this champion pairing. If you mind the build and tips presented above, you will increase your win rate by a lot.
The most important items to build first in your Cassiopeia and Amumu synergy build include Seraph's Embrace, Cosmic Drive, and Rod of Ages. When Cassiopeia used at least these three items in her build, she performed a lot better when paired up with Amumu than with most other typical item sets. In fact, Cassiopeia boasted an average win rate of 52.1% when synergizing her build and playstyle to Amumu with this build.
To have the greatest probability of crushing your oponents, you should take the Conqueror, Presence of Mind, Legend: Tenacity, Last Stand, Manaflow Band, and Transcendence runes from the Precision and Sorcery rune sets. Of all the rune builds players picked for this champion pairing, this set of runes resulted in the highest win rate. Moreover, these runes gave a 52.1% win rate overall.
If you need to see Cassiopeia with Amumu synergy tips and stats for a a specific skill level, feel free to select one from the selection menu shown above. By default, the statistics and strategies shown are calculated using every round finished with these champs.