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.
Be a bird!
In the lane, try to position your soldiers between the enemy's minions and the enemy champion. This way you can use them both to last hit and to project threat onto your lane opponent.
Be careful about putting down both of the soldiers stored by Arise! Unless you're going all-in, always have a soldier in your back pocket if you need to escape over a wall or if you misposition your other soldier and need damage now.
Think of Emperor's Divide as a defensive ability first and foremost. Use it when the enemy engages on you or your allies. Remember that your team can walk through the soldiers summoned by Emperor's Divide and use this to your advantage when enemy melee champions engage on you.
The Kassadin Azir synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Azir, compared to his overall stats. Significant differences are areas of focus that highlight how his gameplay changes when paired with this other champion.
Overall, Kassadin sees a large worsening in his KDA (ratio of kills and assists to deaths) when paired with Azir. His KDA went down from NaN to NaN. This decrease shows that Azir helps Kassadin perform not as well in ranked LoL rounds. Yet, the small difference proves that this performance change is only marginal.
When Kassadin plays on the same team as Azir, he observes a moderate decrease in his full damage dealt. This could signal that Azir does not support by providing protection for him to dish out more damage or that his presence also helps extend the match's duration. Similarly, when Kassadin is played alongside Azir on the same side, he usually scores many fewer killing sprees than when he plays on his own. This is contrasting evidence that he is worse when playing alongside Azir.
Additionally, when Kassadin plays with Azir on the same side, he often takes a little more damage than when he plays alone. Receiving more damage may indicate that Azir does a poor job of protecting Kassadin in team fights.
There is no universally accepted best champion pairing for Kassadin that will always be his best teammate. However, Azir is a very typical ally for Kassadin. By locking into the same team as Kassadin, he has no effect on their win rate by 0.0% to 50.0%. This demonstrates that there is a weak bond between Kassadin and Azir that results in them performing at the same level together than alone.
Azir has a greater difficulty than Kassadin. That means you need to be very careful when lining up Azir comrades to fight alongside, as they will require a greater level of skill to cooperate well with you.
Playing together, you should expect to observe an overall large increase in your team’s capability to deal magical damage. When paired, these champs can blast through enemies with magic damage.
Although, by bringing Kassadin and Azir together, you will not be granting your team a great deal of protection for burst damage. Make sure to have other champions on your team that helps cover this relative hole in this pairing's potential.
Regardless of the skill of your Azir ally, you need to focus on maximizing your income, outlasting your enemies, and taking down objectives. If you do this, you should do well, regardless.
To learn all of the intricacies of Kassadin to work well with Azir during both the laning and mid / late game phases of League games, you should keep reading to master additional tricks and insights into this champion pairing. If you pay attention to the build and tips displayed above, you should grow your win rate by a lot.
The best items to build first in your Kassadin and Azir synergy build include Seraph's Embrace, Lich Bane, and Malignance. When Kassadin included at least these three items in his build, he performed a lot better when fighting alongside Azir than with many other typical item sets. In fact, Kassadin boasted an average win rate of 50.0% when synergizing his build and playstyle to Azir with this build.
To have the best probability of beating your oponents, you should use the Electrocute, Sudden Impact, Eyeball Collection, Ultimate Hunter, Presence of Mind, and Legend: Tenacity runes from the Domination and Precision rune sets. Out of all the rune builds players used for Kassadin and Azir pairings, this set of runes yielded the greatest win rate. Notably, these runes provided a 50.0% win rate overall.
By default, tips, stats, and builds on how to synergize Azir with Kassadin are presented for all skill levels combined. If you want to filter the stats and builds to a specific skill level, you should use the selection menu earlier in the counter matchup guide.