You can use Comet of Legend's flight to grow Starsurge to massive proportions.
Comet of Legend allows you to move quickly around the map; use it to put pressure on other lanes.
Save Voice of Light to use as a defense against melee opponents if you need to - otherwise, use its slow to start a fight at long range.
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 Aurelion Sol 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, Aurelion Sol sees a very large drop in his KDA (ratio of kills and assists to deaths) when paired with Kassadin. His KDA decreased from NaN to NaN. This drop shows that Kassadin helps Aurelion Sol perform not as well in competitive League rounds. Yet, the small difference indicates that this performance change is not very impactful.
When Aurelion Sol tries to synergize with Kassadin, he sees a measurable drop in his complete damage dealt. This change may signal that Kassadin does not support by providing cover for him to deal more damage or that his support also helps increase the match's duration. Similarly, when Aurelion Sol is played alongside Kassadin on the same side, he usually scores many fewer killing sprees compared to when he plays on his own. This is contrasting evidence that he is worse when playing with Kassadin.
Moreover, when Aurelion Sol plays with Kassadin on the same team, he usually receives a little more damage than when he fights alone. Getting dealt more damage may indicate that Kassadin does a poor job of covering Aurelion Sol during teamfights.
There is no top synergy for Aurelion Sol that will no matter what be his top ally. However, Kassadin is a terrible ally for Aurelion Sol. By playing on the same team as Aurelion Sol, he drops their win rate by -10.4% to 40.2%. This demonstrates that there is a very bad bond between Aurelion Sol and Kassadin that results in them performing worse together than without each other.
Kassadin has a greater difficulty than Aurelion Sol. That means Aurelion Sol players need to be cautious 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 cooperate well with you.
Playing alongside, you will likely witness an overall large increase in your team’s ability to deal magical damage. Together, these champs are able to dish out a surprising amount of magic type damage.
Conversely, by pairing Aurelion Sol and Kassadin together, you will not be providing your team much AD. We recommend you 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 gold income, warding to avoid ambushes, and taking down objectives. If you heed this simple advice, you will do well anyway.
If you would like to learn all of the intricacies of Aurelion Sol in order to synergize with Kassadin during both the laning and mid / late game phases of LoL, you should continue reading to pick up a few extra tips and tricks for this champion pairing. If you pay attention to the build and suggestions shown here, you should grow your win rate significantly.
The best items to use in your Aurelion Sol and Kassadin synergy build include Seraph's Embrace, Stormsurge, and Liandry's Torment. When Aurelion Sol combined at least these three items in his build, he did significantly better when paired up with Kassadin than with most other commonly used item sets. In fact, Aurelion Sol had an average winrate of 40.2% when synergizing his build and playstyle to Kassadin with these items in his kit.
To have the best chance of annihilating your oponents, you should take the Arcane Comet, Manaflow Band, Absolute Focus, Gathering Storm, Magical Footwear, and Biscuit Delivery runes from the Sorcery and Inspiration rune sets. Of all the runes players picked for Aurelion Sol and Kassadin pairings, this mix of runes yielded the top win rate. Notably, these runes averaged a 40.2% winrate overall.
If you would like to get Aurelion Sol with Kassadin cooperations tips and stats for a a specific skill level, feel free to select one from the selection menu above. At first, the statistics and guides shown are computed using every match completed with both champions.