If you have trouble landing Prismatic Barrier, remember that it returns to you after it reaches max range. Try positioning yourself to hit your allies with its return trip.
Lux has great zone control abilities. Try to set up Lucent Singularity to prevent an enemy's advance or escape.
Lucent Singularity is a great scouting tool. Try throwing it into brush before walking into it to check for ambushes.
When Kayn is in terrain near you, you will get a visual warning on the edge of the terrain he's in.
Umbral Trespass requires Kayn to damage a target first. Try to dodge Blade's Reach to deny him a long range cast of Umbral Trespass.
Damage Kayn while he's in Shadow Step to shorten its duration, or apply hard crowd control (stun, charm, knockup, etc) to end Shadow Step immediately.
The stat comparisons shown here clarify several influential Lux vs. Kayn matchup stats that may help us explain the distinctions between the two. Lux’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Kayn’s KDA ratio of NaN, highlighting that Lux may be more central to her team's team fighting capacity than Kayn..
Lux normally has a slightly smaller longest kill spree than her opponent does. On average, she receives less damage than Kayn. This is usually reflective of differing health capacities, yet it can also indicate that the one champ has less agility and thus is unable to kite away from additional harm when engaged or poked.
Both LoL champs are great champions. Both have their strengths, weaknesses, and counters. In League's current meta, Lux usually fairs equally well when trying to fight Kayn, with a 50.5% win rate. As a result, Lux makes an ok counter for Kayn.
While Lux does have a higher winrate than Kayn, when facing one another, Lux also has a lower learning curve that makes her a less complex character to learn. You should be careful when picking Lux into Kayn.
Moreover, Lux also has a good amount of CC and other utility, a similar amount to Kayn. This makes her just as valuable during teamfights, especially when facing champions with a lot of burst damage.
While there isn't one best champion in League of Legends, in Lux vs Kayn matchups, Lux is the better champion with a similar win rate, less champion complexity, and a similar amount of utility to help out your team members during team fights.
Lux is a decent counter to Kayn. Focus your gameplay on maximizing your CS and destroying objectives. If you can do that, you should hold your own as Lux against Kayn.
To truly master Lux to counter Kayn during both the laning and mid / late game phases of League of Legends, you should continue reading to pick up a few extra tricks and insights into this matchup. If you mind the build and suggestions shown above, you will grow your win rate significantly and be closer to League of Legends pro players.
Lux often racks up more CS compared to Kayn. Champions who on average don't take many minion kills usualy don't have to have much CS to be valuable teammates, such as supports. These kinds of champions are capable of scaling well off of their abilities and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, usually require several high cost items to be effective. In either situation, try to exceed the values shown here to do well.
The most important items to focus on in your Lux versus Kayn build consist of Rabadon's Deathcap, Zaz'Zak's Realmspike, and Stormsurge. When Lux bought at least these three items in her build, she did a lot better versus Kayn than with most other common builds. In fact, Lux had an average winrate of 50.5% battling Kayn with these items in her kit.
To have the best likelihood of defeating Kayn as Lux, Lux players should equip the First Strike, Magical Footwear, Biscuit Delivery, Cosmic Insight, Absolute Focus, and Gathering Storm runes from the Inspiration and Sorcery rune sets. Of all the rune sets players chose for Lux vs Kayn counters, this set of runes resulted in the greatest win rate. Moreover, these runes gave a 50.5% winrate overall.
By default, tips, stats, and builds on how to beat Kayn as Lux are displayed for all ranked divisions combined. If you want to narrow the stats and builds to a distinct division, you should use the selection menu located earlier on the page.