Gwen can still damage enemies outside her Hallowed Mists, especially with her Ultimate's range.
Some of Gwen's Abilities can apply her passive to multiple enemies, so aim them at groups to get maximum damage and healing.
Always be Attacking - In addition to dealing bonus damage, Gwen's Attacks empower or reset many of her Abilities.
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 provided here highlight several critical Gwen vs. Kayn matchup stats that can help you explain the distinctions between the pair. As an example, Gwen’s KDA ratio ([kills + assists] / deaths) of NaN is better than Kayn’s KDA ratio of NaN, demonstrating that Gwen may be more central to her team's team fighting capability than Kayn..
Gwen usually has a similar longest killing spree as her counter does. Commonly, she receives less damage than Kayn. This typically indicates different amounts of tankyness, yet it can also show that the one champion has less agility and thus is not able to kite away from additional harm when engaged or poked.
Both League of Legends champions are great. Both have their strengths, weaknesses, and counters. In League's current meta, Gwen usually fairs equally well when taking on Kayn, with a 50.0% win rate. Thus, Gwen makes an ok counter for Kayn.
While Gwen does have a higher win rate than Kayn, when on opposite teams, Gwen also has a lower difficulty level that makes her a less difficult champ to learn. You should be careful when picking Gwen into Kayn.
Moreover, Gwen has some amount of utility and CC, a similar amount to Kayn. This makes her just as valuable during teamfights, especially when fighting champions with a lot of burst damage.
While there is not one best champion for every situation in League of Legends, in Gwen vs Kayn matchups, Kayn is the better champ with a similar win rate, less champion complexity, and a similar amount of utility to help out your allied champions during late stage team fights.
Gwen is a decent counter for Kayn. You will do well by focussing your gameplay on maximizing your gold income and taking out objectives. If you do that, you should be able to stand on your own as Gwen against Kayn.
If you would like to truly master Gwen in order to counter Kayn during both the laning and mid / late game phases of League of Legends, you should continue reading to gather a few extra tips and tricks for this matchup. If you mind the build and tips displayed here, you should grow your win rate significantly and be that much closer to League of Legends pro players.
Gwen on average gets much more CS as Kayn. Champs who on average don't get many minion kills often don't need much CS to be valuable teammates, such as supports. They are able to scale well off of their abilities and first items alone. Yet, champions with a lot of CS, such as hyper-carries, typically need several high cost items to be effective. In either case, try to exceed the values reported on this page to do well.
The top items to focus on in your Gwen versus Kayn build include Nashor's Tooth, Riftmaker, and Liandry's Torment. When Gwen included at least these three items in her build, she performed significantly better vs Kayn than with many other common builds. In fact, Gwen boasted an average win rate of 50.0% when countering Kayn with these items in her kit.
To have the highest probability of defeating Kayn as Gwen, Gwen players should equip the Conqueror, Presence of Mind, Legend: Alacrity, Last Stand, Second Wind, and Unflinching runes from the Precision and Resolve rune sets. Out of all the rune sets players picked for Gwen vs Kayn fights, this mixture of runes resulted in the greatest win rate. Notably, these runes gave a 50.0% win rate overall.
By default, tips, stats, and builds on how to beat Kayn as Gwen are given for all skill levels combined. If you want to filter the stats and builds to an individual player tier, you can use the selection menu earlier on the page.