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.
It takes 6 spell casts for Kassadin's slow, Force Pulse, to become castable. If he levels up that ability, judiciously use your own skills while laning against him.
Kassadin deals mostly magic damage. If he's doing well consider buying magic resist items like Mercury's Treads and Banshee's Veil.
Each time Kassadin consecutively uses Riftwalk, he pays more and more mana. Keep this in mind as you chase him.
The stat comparisons shown on this page clarify several important Aurelion Sol vs. Kassadin matchup stats that can help us appreciate the differences and similarities between the pair. For instance, Aurelion Sol’s KDA ratio ([kills + assists] / deaths) of NaN is more than Kassadin’s KDA ratio of NaN, showing that Aurelion Sol may be more central to his team's team fighting capability than Kassadin..
Aurelion Sol usually has a slightly smaller longest kill spree than his matchup does. Commonly, he receives less damage than Kassadin. This is usually reflective of different amounts of tankyness, yet it can also illustrate that the champ with higher health has less mobility and thus is unable to flee from further damage when poked or engaged.
Both League of Legends champs are great champions. Both champs have their strengths, weaknesses, and counters. In the game's current meta, Aurelion Sol usually loses when trying to fight Kassadin, with a 46.9% win rate. Thus, Aurelion Sol makes a bad counter for Kassadin.
While Aurelion Sol does have a lower winrate than Kassadin, when facing one another, Aurelion Sol also has a lower learning curve that makes him a less time consuming champ to learn and master. You may get destroyed when picking Aurelion Sol into Kassadinas his relative depth means that you may not be able to unleash his full potential without a lot of practice beforehand.
Moreover, Aurelion Sol has only a small amount of utility and CC, a similar amount to Kassadin. This often makes her just as valuable during teamfights, especially when trying to counter champions with a lot of burst damage.
While there isn't a single best champion in League of Legends, in Aurelion Sol vs Kassadin matchups, Kassadin is the better champ with a much lower win rate, less champion complexity, and a similar amount of utility to help out your teammates during team fights.
Aurelion Sol is a trash counter to Kassadin. Focus your actions on keeping up your gold income and destroying objectives. If you are able to do that, you should do very well as Aurelion Sol against Kassadin.
To truly master Aurelion Sol in order to counter Kassadin during both the lane and mid / late game phases of League of Legends, you should keep reading to gather a few extra lessons on this matchup. If you pay attention to the build and tips displayed here, you will increase your win rate by a lot and be that much closer to League of Legends pro players.
Aurelion Sol typically picks up a similar amount of CS as Kassadin. Champions who typically don't earn much CS usualy don't need much CS to be effective, such as support champions. They are able to scale well off of their skills, stats, and first items alone. Yet, champs with a lot of CS, such as hyper-carries, usually require many items to be effective. In either situation, try to exceed the values shown on this page to do well.
The best items to have in your Aurelion Sol versus Kassadin build include Seraph's Embrace, Rabadon's Deathcap, and Liandry's Torment. When Aurelion Sol combined at least these three items in his build, he did significantly better when fighting Kassadin than with many other typical builds. In fact, Aurelion Sol had an average winrate of 46.9% battling Kassadin with this build.
To have the greatest probability of annihilating Kassadin as Aurelion Sol, Aurelion Sol players should take the Arcane Comet, Manaflow Band, Transcendence, Gathering Storm, Magical Footwear, and Minion Dematerializer runes from the Sorcery and Inspiration rune sets. Of all the rune sets players used for Aurelion Sol vs Kassadin counters, this mixture of runes yielded the greatest win rate. In fact, these runes gave a 46.9% winrate overall.
If you want to get Aurelion Sol versus Kassadin tips and matchup stats and build suggestions for a a specific player tier, please choose one from the selection menu displayed above. At first, the statistics and guides given are computed using every match played with both champs.