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Kayn

Name: Kayn tier and win rate by rank band / Patch 7.3e
Creator: Tencent

KAYN

The Shadow Reaper

JungleAWR51.0%

A peerless practitioner of lethal shadow magic, Shieda Kayn battles to achieve his true destiny—to one day lead the Order of Shadow into a new era of Ionian supremacy. He wields the sentient darkin weapon Rhaast, undeterred by its creeping corruption of his body and mind. There are only two possible outcomes: either Kayn bends the weapon to his will... or the malevolent blade consumes him completely, paving the way for the destruction of all Runeterra.

Official ↗︎

Skills

THE DARKIN SCYTHEPassive

Kayn the Shadow Assassin fights Rhaast the Darkin Slayer for control. Damaging ranged champions charges the Shadow Assassin, and damaging melee champions charges the Darkin Slayer. At full charge, Kayn can permanently transform at his base. Shadow Assassin: After Kayn has not taken damage from enemy champions for 5 seconds, or after using Umbral Trespass, his attacks and abilities deal an additional 52% (based on level) magic damage to enemy champions for 3 seconds. Darkin Slayer: Kayn heals for 24% (based on level) of damage dealt to enemy champions.

REAPING SLASHSkill 1

Dashes and deals 70 (+60% bonus AD) physical damage, then spins his scythe to deal the same damage. Darkin Slayer: Deals 60% AD plus 7% (+0.06% bonus AD) of the target's maximum Health as physical damage instead. Deals an additional 35 physical damage to minions and monsters.

	LV 1	LV 2	LV 3	LV 4
Cooldown	6.5	6	5.5	5
Cost	50
Base Damage	70	100	130	160
Bonus AD Ratio	60%	65%	70%	75%
Max Damage vs Monsters	235	310	385	460

BLADE'S REACHSkill 2

Swipes the scythe upward, dealing 105 (+120% bonus AD) physical damage and slowing enemies hit by 90% decaying over 1.5 seconds. Shadow Assassin: Kayn can move while using this ability and its range is increased. Darkin Slayer: Additionally knocks up enemies hit for 1 second.

	LV 1	LV 2	LV 3	LV 4
Cooldown	12	11	10	9
Cost	50	60	70	80
Base Damage	105	165	225	285

SHADOW STEPSkill 3

Gains 35% Movement Speed and can move through terrain for 5 seconds. Kayn restores 100 (+50% bonus AD) Health upon entering terrain for the first time. Being immobilized or spending more than 1.2 consecutive seconds outside of terrain or in combat with enemy champions ends this ability early. Shadow Assassin: Gains 75% Movement Speed instead and becomes immune to slows. The cooldown is reduced to 7 seconds.

	LV 1	LV 2	LV 3	LV 4
Cooldown	18	16	14	12
Cost	50
Duration	5	5.5	6	6.5
Health	100	120	140	160

UMBRAL TRESPASSUltimate

Infests an enemy champion for 2.5 seconds, becoming untargetable. When the infestation ends, the target is dealt 200 (+165% bonus AD) physical damage. Recast: Ends the infestation early. Shadow Assassin: Increases this ability's range and the distance Kayn exits, and refreshes The Darkin Scythe's cooldown on exit. Darkin Slayer: Deals 15% (+0.13% bonus AD) of the target's maximum Health as physical damage instead and Kayn heals for 12% (+0.1% bonus AD) of the target's maximum Health.

	LV 1	LV 2	LV 3
Cooldown	80	70	60
Cost	100
Base Damage	200	300	400

Tier by Rank

Official

Tier and numbers

TierWinPickBan
Diamond+A← A51.0%6.0%3.3%
Master+A← A50.9%6.2%3.7%
ChallengerA← A50.1%7.0%5.6%
LegendaryA← A50.6%7.1%5.5%

Tencent official (CN server) / Jungle / 2026-11-07

Jungle: win rate #18 of 45Pick rate #12Jungle median win rate 50.4%

Tier stays A at every rank, with only a 1.0 point win-rate spread — consistent across ranks.

Reading the table

The “← A” after a tier is the tier in the previous ranking.

Legendary is the top tiers of the Legendary Queue, a separate ranked queue for top players.

Among Jungle

One dot per champion

Win rate

44%50%56%Kayn · A

0%Pick rate →

Build Trends

Official Tencent data (China server)Diamond+ / JungleAs of 2026-11-0611/06

Rank

SortFaded rows: pick rate under 2%

Build patterns

Splits into 1 core · 4 rune patterns

How it works

Durability: health, armor, magic resist
Attack damage: attack damage, armor penetration
Ability power: ability power, magic penetration
Attack speed: basic attack speed
Ability haste: ability cooldowns, mana

The combos in the tables below, grouped by shape; not a ranking or a verdict. Each item goes to the family its stats are worth the most gold in, and a shape is how many of the 3 core items fall in each family. Effects (passives) are not counted, and items without stats are left out. Runes are grouped by keystone and the most common tree among the rest. The icons show the most common combo of each shape. A shape at 10% or more counts as a pattern; shapes under 3% get no card. Less common item families are families whose items appear in under 10% of the Chinese combos but do show up in overseas guides or streamer and pro builds. Their icons are separate item options seen in those sources, not one build. Families are listed by how many sources they appear in.

Core itemsNearly all one shape

100%Attack damage ×3

Runes4 patterns

41.7%ConquerorPrecision ×3

18.2%ConquerorInspiration ×3

14.6%First StrikeInspiration ×3

11.8%Dark HarvestDomination ×3

Less common item familiesItems from families under 10% of the Chinese combos, but found in other sources

Durability item optionsItems seenChinese combos noneOverseas guides 5 itemsStreamers and pros 1 of 5

Attack speed item optionsItems seenChinese combos noneOverseas guides 1 itemsStreamers and pros 0 of 5

Core items (3)14 combos, by pick rateby win rate

CombinationPickWin
14.6%56.1%
13.4%54.6%
4.6%57.8%
2.3%55.5%
2.3%58.4%
1.9%49.9%
1.7%57.8%
1.5%56.9%
1.4%52.7%
1.3%53.8%
1.2%54.9%
1.1%56.8%
1.1%50.9%
1.0%48.8%

Runes14 combos, by pick rateby win rate

CombinationPickWin
30.1%51.7%
7.3%50.5%
6.3%50.4%
5.0%47.6%
4.3%52.2%
3.6%48.5%
3.4%54.4%
3.3%50.8%
2.0%46.9%
1.9%52.6%
1.5%50.6%
1.3%48.4%
1.3%49.9%
1.0%50.5%

Summoner spells2 combos, by pick rateby win rate

CombinationPickWin
95.3%51.3%
4.1%51.8%

Pick and win rates are Tencent's own figures, shown as published (sample sizes are not published).

Streamer and pro builds5 builds

Streamer / proCore itemsKeystone, spells
抖音清扰
抖音强宝
南晨lolm
抖音北季
抖音北季

Items in these builds

Chinese streamer and pro builds published by Tencent (pros first). Support items are not included.

Patch Changes

Ver. 7

History7.1eChanged7.2Buff7.3Changed

7.3Changed2026-09-22

Base Stats

Attack Speed Ratio: 0.67
Base Attack Speed: 0.67
Base Bonus Attack Speed: 0.2
Attack Speed per Level: 0.018

7.2Buff2026-07-08

Umbral Trespass

Reduced the recovery time after emerging from a target, letting Kayn/Rhaast respond to player input more quickly.
Max exit distance: Kayn / Darkin: 4 → 4.5, Shadow Assassin: 6 → 6.5

7.1eChanged2026-05-13

The Darkin Scythe

Bonus damage ratio in Shadow Assassin form: 48% ~ 62% (Based on Level) → 52% ~ 66% (Based on Level)

Blade's Reach

Bonus Attack Damage Scaling: 110% → 120%

Patch notes 7.3d and earlier versions

Analysis

Nothing equipped

Combat Power at Lv15 is 12,526 (#28 of 142, #4 of 16 Assassin). About the same as #20 at Lv1.

LvLv 15

Stats 76% · Skills 24%

Growth by level

KaynMedianAssassin median

Shape of ability effects

Lv15

Damage1,484

Movement717

Stat buffs383

Heals & shields379

Slows78

Growth by level

Lv	CP	Median	Assassin median	Rank
1	6,490	5,897	6,246	20
2	7,110	6,459	6,713	20
3	8,246	6,934	7,362	4
4	8,815	7,485	7,908	5
5	9,045	7,899	8,312	13
6	9,407	8,244	8,560	14
7	9,698	8,552	8,932	14
8	10,081	8,948	9,232	15
9	10,430	9,378	9,623	18
10	10,805	9,716	9,956	18
11	11,103	10,018	10,253	21
12	11,578	10,461	10,634	23
13	11,823	10,786	10,929	26
14	12,224	11,138	11,275	25
15	12,526	11,462	11,560	28

Shape of ability effects

Lv15

Level 15 values with nothing equipped.

AttackDefenseMobility

- Damage amp (Shadow Assassin, 52-66% for 3 s)798G
Combat only: 50%Read as a similar price
- Physical damage1,579G
Combat only: 50%At most once per 8sDamage valued like healingSkill ranks from level
- Physical damage1,250G
- 90% slow (decaying)512G
Combat only: 50%Survival factorMove speed % as flatChampion medianSkill ranks from level
- Heal (first entering terrain)789G
- +75% move speed (Shadow Assassin)4,164G
Combat only: 50%At most once per 8sSurvival factorMove speed % as flatChampion medianSkill ranks from level
- Physical damage263G
Combat only: 50%Skill ranks from level

Gold values with nothing equipped. Ratios such as AP grow with your build in the Build Lab. Tap a row to see the formula.

Assumptions

Combat only: 50%

Effects that only work in combat or under a condition are counted as active half the time. The same rule applies to every rune and spell.

Read as a similar price

Effects without a price are read as the closest existing formula: vision as avoiding a gank death (half an escape tool's chance), blocking attacks or projectiles as a shield for the same time, untargetable time (invisibility, etc.) as crowd control on the enemy, range as the move speed of the approach distance saved, experience as gold (1 = 0.5 gold), and stolen or reduced enemy stats as stats (or defense) you gain.

At most once per 8s

Effects that re-trigger on attacks are counted at most once every 8 seconds, since a single fight only allows so many procs.

Damage valued like healing

Damage to an enemy is valued like healing yourself the same amount, priced with the health regen rate.

Skill ranks from level

A champion's ability values depend on rank, so rank is derived from level. The ultimate ranks up at levels 5 / 9 / 13. Remaining points go to abilities 1 → 2 → 3 in turn (1 / 0 / 0 at level 1, 4 / 4 / 4 at level 15). Which ability to max first is a judgement call, so every champion uses the same order. Abilities with a different number of ranks (such as Jayce's 5) follow the same rule, raising the lowest-ranked ability one point at a time; an ability learned from level 1 starts at rank 1.

Survival factor

Moving faster by some % is counted as that % more effective health, since speed lets you dodge and escape. Value = median max health × the speed gain × the health price.

Move speed % as flat

Move speed % is converted to flat move speed against the median base speed of 350, then priced at the flat rate.

Champion median

Values that depend on the champion, such as health, use the median of all champions at level 1 and level 15.

Line: min to max · tick: median

HP2,422#59

Armor110#33

Magic Resist64#59

Attack126#19

Attack Speed0.973#65

Move Speed350#54

HP regen19#48

MP1,260#6

MP regen26#45

Lv 15	Kayn	Min	Median	Max
HP	2,422	1,832	2,422	2,732
Armor	110	34	104	127
Magic Resist	64	45	60	80
Attack	126	50	109.5	147
Attack Speed	0.973	0.735	0.951	1.252
Move Speed	350	335	350	360
HP regen	19	14	19	29
MP	1,260	802	1,080	1,390
MP regen	26	16	25	36

Rank and min to max are among all 142 champions. Mana stats are among the 119 champions that use mana.

Available Skins

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Kayn

Skills

Tier by Rank

Tier and numbers

Among Jungle