Sivir's Boomerang Blade returns to her after reaching the max range, so you can shift position to hit enemies who would otherwise have evaded it.
Try saving Spell Shield for enemy abilities that can disable you such as stuns and roots.
Ricochet resets Sivir's basic attack timer on activation, so activating this immediately after landing a normal basic attack will maximize damage output.
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 Sivir 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, Sivir sees a large worsening in her KDA (ratio of kills and assists to deaths) when paired with Jax. His KDA fell from NaN to NaN. This decrease shows that Jax helps Sivir perform poorer in ranked League matches. Yet, the small difference demonstrates that this performance change is only marginal.
When Sivir is an ally to Jax, she gets a small decrease in her full damage dealt. This difference could signal that Jax doesn't help protection for her to deal more damage or that his presence also helps extend the match's duration. Similarly, when Sivir is played together with Jax on the same team, he usually scores many fewer killing sprees than when she plays alone. This is contrasting evidence that she is worse when playing with Jax.
Additionally, when Sivir plays with Jax on the same side, she typically receives a little less damage than when she fights alone. Getting dealt not as much damage could indicate that Jax does a decent job of covering Sivir during teamfights.
There is no universally accepted best companion for Sivir that will 100% of the time be her best synergy. However, Jax is a decent companion for Sivir. By locking into the same side as Sivir, he increases their win rate by 2.2% to 50.1%. This signals that there is a somewhat important bond between Sivir and Jax that results in them performing better together than alone.
Jax has a greater difficulty than Sivir. That means you must be very careful when enlisting Jax comrades to fight alongside, as they will have to have a greater level of skill to be able to cooperate well with you.
When playing alongside, Sivir players will likely see an overall large increase in your team’s capability to deal physical damage. Together, these champs can tear through the other team with a lot of physcial damage.
Although, by bringing Sivir and Jax together, you will not be giving your side enough utility. Make sure to bring other champions on your team that nullifies this relative gap in their kit.
Regardless of your Jax ally's ability, you should focus on maximizing your income, warding to avoid ambushes, and taking down objectives. If you do this, you will do well, regardless.
If you would like to truly master Sivir in order to synergize with Jax during both the early game and mid / late game phases of League rounds, you should keep reading to learn additional tips and tricks for this champion pairing. If you pay attention to the build and suggestions presented here, you will grow your win rate by a lot.
The most important finished items to have in your Sivir and Jax synergy build include Phantom Dancer, Bloodthirster, and Kraken Slayer. When Sivir combined at least these three items in her build, she did much better when paired up with Jax than with many other typical item sets. In fact, Sivir boasted an average win rate of 50.1% when playing alongside Jax with this build.
To have the best chance of coming out on top against your oponents, Sivir players should equip the Lethal Tempo, Presence of Mind, Legend: Bloodline, Coup de Grace, Biscuit Delivery, and Magical Footwear runes from the Precision and Inspiration rune sets. Of all the runes we have analyed for Sivir and Jax pairings, this mix of runes yielded the top win rate. In fact, these runes averaged a 50.1% winrate overall.
By default, tips, stats, and builds on how to pair Jax with Sivir are shown for every ranked division. If you want to filter the statistics and builds to a particular player tier, you can use the selection menu located earlier on the page.