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.
Dodging Arctic Assault and Glacial Prison can give you a huge advantage.
Focus on avoiding the second swing of Winter's Wrath which carries the brunt of the damage.
Melee enemies can also stack Frost for Sejuani, be very careful around them.
The stat comparisons shown on this page feature several vital Aurelion Sol versus Sejuani counter stats that can help us distinguish the differences between this set of champions. Aurelion Sol’s KDA ratio ([kills + assists] / deaths) of NaN is more than Sejuani’s ratio of NaN, showing that Aurelion Sol may be more central to his team's team fighting capability than Sejuani. This observation is largely a result of the difference in kills.
Aurelion Sol often has a slightly larger longest kill spree than his matchup does. Typically, he takes less damage than Sejuani. This commonly reflects differing health capacities, but it can also imply that the champion with higher HP has less agility and thus is unable to kite away from additional damage when poked or engaged.
Both LoL champs are great champions. Both champs have their strengths, weaknesses, and counters. In League's current meta, Aurelion Sol usually wins when playing against Sejuani, with a 57.2% win rate. Therefore, Aurelion Sol makes a fantastic counter for Sejuani.
While Aurelion Sol does have a much higher winrate than Sejuani, when facing one another, Aurelion Sol also has a much greater learning curve that makes him a more time consuming character to learn. You don't need to be too worried when picking Aurelion Sol into Sejuanias his relative depth means that you may not be able to reach his full potential without a significant amount of practice beforehand.
Furthermore, Aurelion Sol also has almost no amount of utility and CC, a similar amount to Sejuani. This often makes her just as valuable during team fights, especially when trying to counter champions with a lot of burst damage.
While there is not one best champion for every situation in League of Legends, in Aurelion Sol vs Sejuani matchups, Aurelion Sol is the better champ with a noticably higher win rate, more champion depth, and a similar amount of utility to help out your allies during team fights.
Aurelion Sol is a great counter to Sejuani. Make sure you focus your actions on maximizing your CS and clearing objectives. If you do that, you should be able to stand on your own as Aurelion Sol against Sejuani.
If you would like to learn all of the intricacies of Aurelion Sol in order to counter Sejuani during both the early game and mid / late game phases of League of Legends, you should keep reading to gather a few extra lessons on this matchup. If you listen to the build and tips displayed above, you will grow your win rate by a lot and be that much closer to League of Legends pro players.
Aurelion Sol most often racks up much more CS compared to Sejuani. Champs who on average don't acquire much CS typically don't need much CS to be effective, such as support champions. They are capable of scaling well off of their skills, stats, and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, often have to have a lot of items to be effective. In either situation, try to surpass the values shown on this page to do well.
The ideal items to use in your Aurelion Sol versus Sejuani build consist of Liandry's Anguish, Seraph's Embrace, and Rabadon's Deathcap. When Aurelion Sol included at least these three pieces in his build, he did significantly better when facing Sejuani than with many other typical item sets. In fact, Aurelion Sol boasted an average winrate of 57.2% when countering Sejuani with these items in his kit.
To have the greatest likelihood of coming out on top against Sejuani as Aurelion Sol, Aurelion Sol players should equip the Arcane Comet, Manaflow Band, Transcendence, Gathering Storm, Biscuit Delivery, and Magical Footwear runes from the Sorcery and Inspiration rune sets. Of all the runes players chose for Aurelion Sol vs Sejuani matchups, this sequence of runes yielded the best win rate. Moreover, these runes provided a 57.2% win rate overall.
By default, tips, statistics, and builds on how to beat Sejuani as Aurelion Sol are shown for every ranked division. To scope the statistics and builds to a distinct rank, you can use the selection menu earlier in the counter matchup guide.