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.
Lead your enemy when targeting with Noxious Blast to ensure the hit.
Use Twin Fang on poisoned stationary targets like monsters and units stunned by her Petrifying Gaze for maximum damage.
The Aurelion Sol Cassiopeia synergy stats shown here demonstrate the areas of his gameplay that do better (or worse) when paired with Cassiopeia, 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 Cassiopeia. His KDA fell from NaN to NaN. This worsening shows that Cassiopeia helps Aurelion Sol perform not as well in competitive LoL rounds. Yet, the small difference shows that this performance change is not very impactful.
When Aurelion Sol tries to synergize with Cassiopeia, he gets a moderate decrease in his complete damage dealt. This change may signal that Cassiopeia doesn't help cover for him to deal more damage or that her participation also helps increase the game's duration. Similarly, when Aurelion Sol is played with Cassiopeia 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 Cassiopeia.
Additionally, when Aurelion Sol plays with Cassiopeia on the same team, he on average receives a little less damage than when he fights alone. Getting dealt not as much damage may indicate that Cassiopeia does a decent job of covering Aurelion Sol during team fights.
There is no top synergy for Aurelion Sol that will no matter what be his best ally. However, Cassiopeia is a relatively poor teammate for Aurelion Sol. By being on the same team as Aurelion Sol, she drops their win rate by -2.0% to 48.6%. This clearly indicates that there is a bad bond between Aurelion Sol and Cassiopeia that allows them to perform not as well together than alone.
Cassiopeia has a greater difficulty than Aurelion Sol. That means you should be cautious when lining up Cassiopeia teammates to fight alongside, as they will need a greater level of skill to be able to fight well with you.
When playing together, Aurelion Sol players should expect to see an overall large increase in your team’s capacity to deal magic damage. When paired, these two are able to dish out a surprising amount of magic type damage.
Although, by grouping Aurelion Sol and Cassiopeia together, you may not be granting your other allies a lot of sustained damage output. Plan to include other champions on your team that helps cover this disparity in their capabilities.
Regardless of your Cassiopeia ally's skill level, you should focus on maximizing your gold income, warding to avoid ambushes, and taking down objectives. If you heed this simple advice, you will do well, regardless.
If you would like to truly master Aurelion Sol to pair well with Cassiopeia during both the lane and mid / late game phases of LoL rounds, you should keep reading to pick up some more tips and tricks for this champion pairing. If you use the build and stats presented here, you will increase your win rate by a lot.
The best finished items to build first in your Aurelion Sol and Cassiopeia synergy build consist of Seraph's Embrace, Rylai's Crystal Scepter, and Liandry's Torment. When Aurelion Sol included at least these three finished items in his build, he performed much better when fighting alongside Cassiopeia than with most other typical item sets. In fact, Aurelion Sol had an average win rate of 48.6% when synergizing his build and playstyle to Cassiopeia with this build.
To have the highest chance of annihilating your oponents, Aurelion Sol players should equip the Arcane Comet, Manaflow Band, Absolute Focus, Gathering Storm, Magical Footwear, and Biscuit Delivery runes from the Sorcery and Inspiration rune sets. Out of all the runes players used for Aurelion Sol and Cassiopeia pairings, this order of runes yielded the best win rate. Moreover, these runes provided a 48.6% winrate overall.
By default, tips, stats, and builds on how to pair Cassiopeia with Aurelion Sol are displayed for all skill levels combined. To filter the stats and builds to a distinct player tier, you should use the selection menu located earlier in the counter matchup guide.