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.
Kassadin's ultimate has many uses and is on a shorter cooldown than most, use it often.
Kassadin has multiple item paths; he can go caster via Mana and Ability Power or anti-caster with Cooldown Reduction and Magic Resist.
Try to get the Ancient Golem buff to counteract Riftwalk's increasing Mana cost.
The Jax Kassadin synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Kassadin, compared to his overall stats. Significant differences are areas of focus that highlight how his gameplay changes when paired with this other champion.
Overall, Jax sees a large worsening in his KDA (ratio of kills and assists to deaths) when paired with Kassadin. His KDA fell from NaN to NaN. This negative change shows that Kassadin helps Jax perform not as well in ranked LoL matches. Yet, the small difference demonstrates that this performance change is not very impactful.
When Jax is an ally to Kassadin, he gets a little decrease in his total damage dealt. This difference could signal that Kassadin does not support by providing protection for him to deal more damage or that his presence also helps increase the game's duration. Similarly, when Jax is played together with Kassadin on the same side, he usually scores many fewer killing sprees compared to when he plays alone. This is contrasting evidence that he is worse when playing alongside Kassadin.
Additionally, when Jax plays with Kassadin on the same team, he typically takes a little less damage than when he plays alone. Receiving not as much damage could mean that Kassadin does a decent job of covering Jax in teamfights.
There is no one best champion pairing for Jax that will 100% of the time be his ideal ally. Yet, overall, Kassadin is a very typical companion for Jax. By locking into the same team as Jax, he raises their win rate by 0.8% to 51.6%. This shows that there is a weak synergy between Jax and Kassadin that allows them to perform stronger together than without each other.
Kassadin has a greater difficulty than Jax. That means Jax players must be very careful when arranging Kassadin allies to go into battle on the same side as, as they will have to have a greater level of skill to do well with you.
Working cooperatively, Jax players will likely see an overall large increase in your team’s capability to to do a lot of AP damage. When paired, these champs can deal quite a lot of AP type damage.
Although, by aligning Jax and Kassadin together, you will not be granting your other allies much crowd control. Make sure to include other champions on your team that offsets this relative gap in this pairing's capabilities.
Regardless of your Kassadin ally's ability, you should focus on increasing your income, warding to avoid ambushes, and taking down objectives. If you follow these simple suggestions, you should do well, regardless.
To truly master Jax to synergize with Kassadin during both the early game and mid / late game phases of LoL rounds, you should continue reading to gather some more tricks and insights into this champion pairing. If you listen to the build and suggestions displayed above, you will increase your win rate significantly.
The most important finished items to focus on in your Jax and Kassadin synergy build include Sterak's Gage, Spear of Shojin, and Sundered Sky. When Jax incorporated at least these three pieces in his build, he performed much better when paired up with Kassadin than with most other commonly used item sets. In fact, Jax boasted an average win rate of 51.6% when playing alongside Kassadin with this build.
To have the best probability of coming out on top against your oponents, you should use the Lethal Tempo, Triumph, Legend: Alacrity, Last Stand, Magical Footwear, and Cosmic Insight runes from the Precision and Inspiration rune sets. Of all the rune builds players chose for Jax and Kassadin pairings, this mixture of runes yielded the greatest win rate. Moreover, these runes provided a 51.6% winrate overall.
If you need to view Jax with Kassadin synergy tips and stats for a a specific division rank, feel free to choose one from the selection menu provided above. If viewing for the first time, the statistics and tips and suggestions displayed are computed using every match with data with these champs.