For increased range and damage, try casting Shock Blast through the Acceleration Gate.
If you find yourself taking lots of damage, try using Jayce's Hammer Stance, as it grants you additional defenses.
Be sure to switch stances often. It will enhance your attacks and grant you quick bursts of speed.
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 stats provided here highlight several critical Jayce against Sejuani counter statistics that can help you distinguish the differences and similarities between this pair of champions. As an example, Jayce’s KDA ratio ([kills + assists] / deaths) of NaN is more than Sejuani’s KDA ratio of NaN, highlighting that Jayce may be more central to his team's team fighting effectiveness than Sejuani..
Jayce typically has a slightly larger longest kill spree than his enemy does. On average, he takes less damage than Sejuani. This commonly reflects different amounts of tankyness; however, it can also illustrate that the one champion has less agility and thus is not able to kite away from further damage when poked or engaged.
Both League champs are great. Both have their strengths, weaknesses, and counters. In the game's current meta, Jayce usually wins when playing against Sejuani, with a 52.6% win rate. Therefore, Jayce makes a good counter to Sejuani.
While Jayce does have a higher win rate compared to Sejuani, when they face off with one another, Jayce also has a much greater difficulty level that makes him a more difficult character to learn and master. You should be be fine when picking Jayce into Sejuanias his relative depth means you may not be able to reach his full potential without a lot of practice beforehand.
Moreover, Jayce has almost no amount of CC and other utility, a similar amount to Sejuani. This often makes her just as valuable during teamfights, especially when trying to counter champions with a ton of burst damage.
While there is not a single best champion for every situation in League of Legends, in Jayce vs Sejuani matchups, Jayce is the better champ with a noticably higher win rate, more champion depth, and a similar amount of utility to help out your teammates during team fights.
Jayce is an above average counter to Sejuani. Focus your gameplay on keeping up your CS and clearing objectives. If you are able to do that, you should do very well as Jayce against Sejuani.
To truly master Jayce to counter Sejuani during both the lane and mid / late game phases of League of Legends, you should continue reading to pick up a few extra lessons on this matchup. If you mind the build and stats displayed above, you will grow your win rate significantly and be that much closer to League of Legends pro players.
Jayce usually racks up much more CS as Sejuani. Champions who typically don't earn much CS usualy don't need much CS to be valuable teammates, such as supports. These kinds of champions 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, usually require several high cost items to be effective. In either situation, try to surpass the values displayed on this page to do well.
The most important items to have in your Jayce versus Sejuani build consist of Muramana, Edge of Night, and Serylda's Grudge. When Jayce combined at least these three items in his build, he performed much better when facing Sejuani than with most other commonly used counter builds. In fact, Jayce had an average win rate of 52.6% when playing against Sejuani with this counter build.
To have the highest likelihood of defeating Sejuani as Jayce, Jayce players should equip the First Strike, Magical Footwear, Biscuit Delivery, Cosmic Insight, Manaflow Band, and Transcendence runes from the Inspiration and Sorcery rune sets. Out of all the rune combinations that we analyzed for Jayce vs Sejuani LoL games, this order of runes resulted in the best win rate. Notably, these runes provided a 52.6% win rate overall.
If you need to get Jayce versus Sejuani tips and matchup stats and build suggestions for a a distinct player tier, feel free to choose one from the selection menu displayed above. If viewing for the first time, the stats and build suggestions shown are calculated using every round run with both champs.