Jax benefits greatly from items that have both Ability Power and Attack Damage such as Guinsoo's Rageblade and Hextech Gunblade.
Jax can Leap Strike to friendly units, including wards. You can use them to plan your escape.
The Yuumi Jax synergy stats shown here demonstrate the areas of her gameplay that do better (or worse) when paired with Jax, compared to her overall stats. Significant differences are areas of focus that highlight how her gameplay changes when paired with this other champion.
Overall, Yuumi sees a very large drop in her KDA (ratio of kills and assists to deaths) when paired with Jax. His KDA worsened from NaN to NaN. This fall shows that Jax helps Yuumi perform poorer in ranked League matches. Yet, the small difference proves that this performance change is only marginal.
When Yuumi plays on the same team as Jax, she observes a little increase in her full damage output. This difference could indicate that Jax helps provide cover for her to dish out more damage or that his participation also helps extend the match's duration. Similarly, when Yuumi is played together with Jax on the same side, he usually scores many fewer killing sprees than when she plays without Jax. This is contrasting evidence that she is worse when playing synergisticly with Jax.
Additionally, when Yuumi plays with Jax on the same side, she typically receives a little less damage than when she fights alone. Receiving not as much damage may indicate that Jax does a decent job of covering Yuumi in teamfights.
There is no ideal ally for Yuumi that will always be her top ally. Yet, Jax is a decent companion for Yuumi. By playing on the same team as Yuumi, he increases their win rate by 2.5% to 46.4%. This signals that there is a good synergy between Yuumi and Jax that allows them to perform better together than alone.
Jax has a greater difficulty than Yuumi. That means Yuumi players should be cautious when enlisting Jax allies to fight alongside, as they will need a greater level of skill to cooperate well with you.
Working cooperatively, Yuumi players should see an overall large increase in your team’s capability to deal magical damage. When paired, these champions can blast through enemies with magic damage.
Conversely, by bringing Yuumi and Jax together, you may not be giving your other teammates a great deal of cover. We recommend you include other champions on your team that fills this relative hole in this pairing's abilities.
Regardless of the skill of your Jax ally, you need to focus on maximizing your gold income, warding to avoid ambushes, and clearing objectives. If you do this, you will do well, regardless.
If you would like to learn all of the intricacies of Yuumi in order to work well with Jax during both the lane and mid / late game phases of League, you should continue reading to gather some more tricks and insights into this champion pairing. If you pay attention to the build and suggestions presented above, you will increase your win rate by a lot.
The most important items to get in your Yuumi and Jax synergy build include Ardent Censer, Imperial Mandate, and Moonstone Renewer. When Yuumi incorporated at least these three great items in her build, she performed much better when fighting alongside Jax than with many other commonly used builds. In fact, Yuumi boasted an average win rate of 46.4% when synergizing her build and playstyle to Jax with this build.
To have the highest likelihood of vanquishing your oponents, you should take the Summon Aery, Manaflow Band, Transcendence, Scorch, Font of Life, and Revitalize runes from the Sorcery and Resolve rune sets. Out of all the rune builds players picked for Yuumi and Jax pairings, this combination of runes resulted in the top win rate. In fact, these runes averaged a 46.4% winrate overall.
By default, tips, stats, and builds on how to pair Jax with Yuumi are shown for all ranked divisions combined. If you want to scope the statistics and builds to an individual division, you should use the selection menu located above.