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.
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 show several significant Jayce vs. Kassadin counter stats that can help us appreciate the differences between the pair. As an example, Jayce’s KDA ratio ([kills + assists] / deaths) of NaN is more than Kassadin’s KDA ratio of NaN, demonstrating that Jayce may be more central to his team's team fighting capability than Kassadin..
Jayce usually has a similar longest killing spree as his foe does. Typically, he takes less damage than Kassadin. This is usually reflective of differing health capacities; however, it can also imply that the champ with increased HP has less mobility and thus is unable to kite away from additional harm when poked or engaged.
Both League of Legends champs are great champions. Both have their pros and cons. In League's current meta, Jayce usually fairs equally well when playing against Kassadin, with a 50.4% win rate. Thus, Jayce makes an ok counter for Kassadin.
While Jayce does have a higher winrate than Kassadin, when they face off with one another, Jayce also has a lower level of difficulty that makes him a less challenging champ to develop with. You still need to be cautious when picking Jayce into Kassadinas his relative depth means you may not be able to reach his full potential without a lot of practice beforehand.
Additionally, Jayce also has almost no amount of CC and other utility, a similar amount to Kassadin. This often makes her just as valuable during team fights, 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 Jayce vs Kassadin matchups, Jayce is the better champ with a similar win rate, less champion complexity, and a similar amount of utility to help out your teammates during team fights.
Jayce is a decent counter for Kassadin. Focus your actions on keeping up your CS and clearing objectives. If you are able to do that, you should be able to stand on your own as Jayce against Kassadin.
To truly master Jayce in order to counter Kassadin during both the lane and mid / late game phases of League of Legends, you should continue reading to learn a few extra lessons on this matchup. If you mind the build and suggestions shown here, you will grow your win rate by a lot and be that much closer to League of Legends pro players.
Jayce usually accumulates a similar amount of CS as Kassadin. Champs who typically don't acquire much CS often don't require much CS to be effective, such as sup champs. They are capable of scaling properly off of their abilities and first items alone. Yet, champs with a lot of CS, such as hyper-carries, often require a lot of items to be effective. In either case, try to do better than the numbers shown on this page to do well.
The most important items to focus on in your Jayce versus Kassadin 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 fighting Kassadin than with most other common item sets. In fact, Jayce had an average win rate of 50.4% when playing against Kassadin with this counter build.
To have the greatest likelihood of beating Kassadin as Jayce, Jayce players should equip the Phase Rush, Manaflow Band, Absolute Focus, Gathering Storm, Biscuit Delivery, and Magical Footwear runes from the Sorcery and Inspiration rune sets. Out of all the rune sets players used for Jayce vs Kassadin matchups, this combination of runes yielded the highest win rate. Notably, these runes provided a 50.4% winrate overall.
If you would like to get Jayce versus Kassadin tips and matchup stats and build suggestions for a a particular division rank, feel free to select one from the selection menu provided above. By default, the stats and guides displayed are calculated using all games finished with these champs.