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.
The Cassiopeia Yuumi synergy stats shown here demonstrate the areas of her gameplay that do better (or worse) when paired with Yuumi, 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 Yuumi. His KDA went down from NaN to NaN. This drop shows that Yuumi helps Cassiopeia perform poorer in ranked League of Legends matches. Yet, the small difference proves that this performance change is not very impactful.
When Cassiopeia plays on the same team as Yuumi, she gets a moderate decrease in her full damage dealt. This difference may demonstrate that Yuumi does not help protection for her to deal more damage or that her participation also helps extend the game's duration. Similarly, when Cassiopeia is played together with Yuumi on the same team, he usually scores many fewer killing sprees compared to when she plays on his own. This is contrasting evidence that she is worse when playing alongside Yuumi.
Moreover, when Cassiopeia plays with Yuumi on the same team, she usually takes less damage than when she fights alone. Taking not as much damage may mean that Yuumi does a decent job of covering Cassiopeia in teamfights.
There is no ideal champion pairing for Cassiopeia that will no matter what be her ideal synergy. However, Yuumi is a very bad teammate for Cassiopeia. By playing on the same team as Cassiopeia, she lowers their win rate by -6.0% to 44.3%. This shows that there is an easy to overcome and exploit bond between Cassiopeia and Yuumi that results in them performing not as well together than without each other.
Yuumi has a much lower diffuclty than Cassiopeia. That means you don't need to be careful when arranging Yuumi comrades to play with, as they will need a much lower level of skill to do well with you.
Playing on the same side, you should expect to observe an overall large increase in your team’s capacity to deal magical damage. Combined, these champs can blast through enemies with magic damage.
In contrast, by grouping Cassiopeia and Yuumi together, you probably will not be granting your other teammates a great deal of protection for burst damage. We recommend you have other champions on your team that nullifies this disparity in this pairing's abilities.
Regardless of the skill of your Yuumi ally, you need to focus on maximizing your gold income, outlasting your enemies, and taking down objectives. If you follow these simple suggestions, you will do well, regardless.
To learn all of the intricacies of Cassiopeia to pair well with Yuumi during both the lane and mid / late game phases of League of Legends, you should continue reading to learn a few extra tricks and insights into this champion pairing. If you pay attention to the build and tips displayed here, you will grow your win rate by a lot.
The best finished items to build first in your Cassiopeia and Yuumi synergy build include Seraph's Embrace, Liandry's Torment, and Rod of Ages. When Cassiopeia used at least these three finished items in her build, she performed much better when fighting alongside Yuumi than with most other common item sets. In fact, Cassiopeia had an average win rate of 44.3% when synergizing her build and playstyle to Yuumi with these items in her kit.
To have the greatest chance of vanquishing your oponents, Cassiopeia players 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 combinations we have analyed for Cassiopeia and Yuumi pairings, this order of runes resulted in the greatest win rate. In fact, these runes gave a 44.3% win rate overall.
If you need to get Cassiopeia with Yuumi collaboration tips and builds for a a specific player tier, please choose one from the selection menu displayed above. By default, the statistics and build suggestions given are computed using every game run with these champs.