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Kayn Build Guide by funa

funa's S16 KAYNOLOGY BIBLE

Updated on June 2, 2026

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League of Legends Build Guide Author funa

Build Guide By funa

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0 Comments League of Legends Build Guide Author funa

Kayn Build Guide By funa Updated on June 2, 2026

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Choose Champion Build:

Shadow Assassin
Rhaast

Recommended Items

Hubris

Voltaic Cyclosword

Edge of Night

Serylda's Grudge

Guardian Angel

Youmuu's Ghostblade

Runes: Default

1 2 3 4 5

Domination

Dark Harvest

Sudden Impact

Sixth Sense

Ultimate Hunter

Inspiration

Cash Back

Cosmic Insight

Bonus:

+9 Adaptive (5.4 AD or 9 AP)
+9 Adaptive (5.4 AD or 9 AP)
+10-180 Bonus Health

Precision

Conqueror

Triumph

Legend: Haste

Coup de Grace

Domination

Sudden Impact

Ultimate Hunter

Bonus:

+9 Adaptive (5.4 AD or 9 AP)
+9 Adaptive (5.4 AD or 9 AP)
+65 Base Health

Domination

Dark Harvest

Sudden Impact

Sixth Sense

Ultimate Hunter

Precision

Triumph

Cut Down

Bonus:

+9 Adaptive (5.4 AD or 9 AP)
+9 Adaptive (5.4 AD or 9 AP)
+10-180 Bonus Health

Domination

Dark Harvest

Sudden Impact

Sixth Sense

Treasure Hunter

Sorcery

Absolute Focus

Gathering Storm

Bonus:

+9 Adaptive (5.4 AD or 9 AP)
+9 Adaptive (5.4 AD or 9 AP)
+10-180 Bonus Health

Sorcery

Stormraider's Surge

Axiom Arcanist

Celerity

Gathering Storm

Precision

Legend: Haste

Cut Down

Bonus:

+9 Adaptive (5.4 AD or 9 AP)
+9 Adaptive (5.4 AD or 9 AP)
+10-180 Bonus Health

Spells:

1 2

Default

Flash

Mosstomper Smite

VS Melee / Healing

Ignite

Scorchclaw Smite

Items

Early Items

Pets?

Mosstomper Seedling

Scorchclaw Pup

Gustwalker Hatchling

Oracle Lens

Control Ward

Early Component Priority

Serrated Dirk

The Brutalizer

Pickaxe

Rectrix

Long Sword

Caulfield's Warhammer

Item Categories

1st Item Options

Hubris

Voltaic Cyclosword

Youmuu's Ghostblade

Boot Options

Boots

Ionian Boots of Lucidity

Gluttonous Greaves

Mercury's Treads

Plated Steelcaps

Lethality Options

Voltaic Cyclosword

Serpent's Fang

Axiom Arc

Youmuu's Ghostblade

Armor Pen?

Serylda's Grudge

Lord Dominik's Regards

Mortal Reminder

Defensive Options

Edge of Night

Guardian Angel

Death's Dance

Maw of Malmortius

Endless Hunger

Randuin's Omen

Build Examples

Standard

Hubris

Voltaic Cyclosword

Edge of Night

Serylda's Grudge

Guardian Angel

Youmuu's Ghostblade

Vs HP Stackers

Hubris

Voltaic Cyclosword

Lord Dominik's Regards

Edge of Night

Guardian Angel

Ionian Boots of Lucidity

Vs Heavy Shield + CC / Comeback Kid

Voltaic Cyclosword

Serpent's Fang

Axiom Arc

Serylda's Grudge

Edge of Night

Mercury's Treads

Tempo Timmy

Youmuu's Ghostblade

Axiom Arc

Edge of Night

Serylda's Grudge

Guardian Angel

Ionian Boots of Lucidity

Don't Build ("Bait" options)

Umbral Glaive

Bastionbreaker

Boots of Swiftness

Mercurial Scimitar

Additional Tips

Bloodsong

Ability Order Red Start

1 2

Threats & Synergies

Threats

Synergies

Extreme Major Even Minor Tiny

Show All

None Low Ok Strong Ideal

Extreme Threats

Ideal Synergies

Poppy

Extreme

Stifles your ability to dictate fights and play the map. If Poppy has cooldowns you are playing her game until Edge of Night completion.

Darius

Extreme

Not as common in the jungle but extremely unplayable for Shadow Assassin setups. Take Conq + Ignite and do your best to counterjungle as it is extremely difficult to countergank or duel him.

Bel'Veth

Extreme

Extreme invade threat in the early game, basically always a problem in team fights, and not easy to get through. Would not recommend playing Blue Kayn into her.

Nocturne

Major

His spellshield can unknowingly eat your R leaving you vulnerable and he can and will outgank and countergank you if you aren't keeping track and responding to his plays.

Kayn

Tiny

Don't tilt and every game is winnable as Blue Kayn :)

Nidalee

Extreme

Hard to duel with half the abilities and a range disadvantage. Try to play the opposite side of the map or punish her with counterganks if your team has the hp to survive her ability rotation.

Kindred

Major

Very threatening in the early game without vision assistance from team. Whoever uses R first loses, but at the end of the day she's another squishy ADC for you to assassinate.

Graves

Major

If Graves comes to a teamfight with 8 Grit stacks you aren't killing him before he kills you, but if you can catch him with his pants down he's yours for the taking. Monitor E stacks and dont let your ego win.

Dr. Mundo

Even

Can be extremely oppressive to fight for Shadow Assassin but the act of picking Kayn in champion select dissuades the Mundo pick to begin with. I would suggest pivoting to Lethality Red if Mundo is drafted though.

Master Yi

Major

Going for Shadow Assassin leaves your team vulnerable to a Yi counterpick. You do not get to dictate when Yi dies in a team fight since you lack the CC to properly respond to him, but if you can force his W and Q before your full combo you can neutralize him.

Viego

Even

Similar situation to Master Yi, but his W can call you out on hasty engages, his E stealth can leave you unable to R for safety, and his invulnerability during possession can make him difficult to stop when he gets going, but his general squishiness makes him a viable target in the early game and vulnerable to invades.

Talon

Extreme

E mobility that rivals Kayn, a full combo that hit much harder early, the ability to match your ignite, and R stealth to counter your R. Tough matchup for Blue even if you build steelcaps, Consider a conquerer setup or switching to Red Kayn and be cautious of early invades.

Briar

Minor

Stall frenzy with E and R and go to town on her. Can take conquerer to ensure a free early game but DH performs just as well midgame.

Xin Zhao

Major

Annoying and sticky, don't fight him pre-6 and don't try to 1v1 him without ignite and Conq.

Ivern

Even

An easy target to get rid of once he wastes his cooldowns, but can take advantage of your engages with his CC and shielding. Consider taking a safer build with an early Serpent's and Edge of Night.

Hecarim

Extreme

Can outclear you and permanently countergank you if you arent careful. Difficult opponent with a surplus of eHP.

Zaahen

Major

A difficult juggernaut to fight. Exploit his slower clear to make proactive plays around the map and save your R or Q to dodge his ult. If he uses his revive, run away or be ready to space him out because he will win that fight every time.

Rammus

Minor

Play off angles and wait for him to engage before jumping on the backline. Once he's in he can't get out. Be cautious of counterganks and play a discplined game.

Rengar

Even

Consider taking the fight to him early before he can get going, calling him out away from bushes, or picking up a Randuin's in the late game to nerf his burst.

Shen

Major

Difficult counterganks between his E and R, play around his R cooldown and don't overextend when a Shen could be right around the corner.

Ahri

Ideal

The ideal Kayn duo. Extreme pressure in early skirmishes and has the map presence through W and R to follow Kayn's E playmaking

Malzahar

Strong

Flash + R = Free Hubris stack

Lissandra

Strong

Flash + R = Free Hubris stack

Veigar

Kayn generally dislikes playing with scaling midlaners who can't deal with early skirmishes and objective fights, but Veigar's cage sets him apart from the others by providing an extremely strong tool for gank setup and objective zoning.

Naafiri

Strong

Similar idea to Ahri, less CC but similar mobility and follows up on your full combo with her R reset.

Shen

Strong

Good safety net on R, big setup for Kayn's full combo.

Synergies

Ideal Strong Ok Low None

Ahri

Ideal

The ideal Kayn duo. Extreme pressure in early skirmishes and has the map presence through W and R to follow Kayn's E playmaking

Malzahar

Strong

Flash + R = Free Hubris stack

Lissandra

Strong

Flash + R = Free Hubris stack

Veigar

Naafiri

Strong

Similar idea to Ahri, less CC but similar mobility and follows up on your full combo with her R reset.

Shen

Strong

Good safety net on R, big setup for Kayn's full combo.

Recommended Items

Spear of Shojin

Endless Hunger

Death's Dance

Maw of Malmortius

Serylda's Grudge

Ionian Boots of Lucidity

Runes: Default

1 2 3 4

Precision

Conqueror

Triumph

Legend: Haste

Last Stand

Domination

Sudden Impact

Treasure Hunter

Bonus:

+9 Adaptive (5.4 AD or 9 AP)
+9 Adaptive (5.4 AD or 9 AP)
+65 Base Health

Precision

Conqueror

Triumph

Legend: Haste

Last Stand

Inspiration

Magical Footwear

Cosmic Insight

Bonus:

+9 Adaptive (5.4 AD or 9 AP)
+9 Adaptive (5.4 AD or 9 AP)
+65 Base Health

Domination

Dark Harvest

Sudden Impact

Sixth Sense

Treasure Hunter

Precision

Triumph

Coup de Grace

Bonus:

+9 Adaptive (5.4 AD or 9 AP)
+9 Adaptive (5.4 AD or 9 AP)
+10-180 Bonus Health

Sorcery

Stormraider's Surge

Axiom Arcanist

Celerity

Gathering Storm

Precision

Legend: Haste

Cut Down

Bonus:

+9 Adaptive (5.4 AD or 9 AP)
+9 Adaptive (5.4 AD or 9 AP)
+10-180 Bonus Health

Spells:

1 2 3

Default

Ignite

Smite

Safe Setup

Flash

Scorchclaw Smite

EXTREMELY SITUATIONAL NOT RECOMMENDED

Exhaust

Mosstomper Smite

Items

Early Items

Pets?

Scorchclaw Pup

Mosstomper Seedling

Oracle Lens

Control Ward

Health Potion

Early Component Priority

Pickaxe

Ruby Crystal

Long Sword

Caulfield's Warhammer

Item Categories

1st Item Options

Spear of Shojin

Eclipse

Youmuu's Ghostblade

Hubris

Voltaic Cyclosword

Boot Options

Plated Steelcaps

Ionian Boots of Lucidity

Mercury's Treads

Gluttonous Greaves

Boots of Swiftness

2nd Item Options

Spear of Shojin

Endless Hunger

Black Cleaver

Death's Dance

Maw of Malmortius

Damage Options

Death's Dance

Serylda's Grudge

Lord Dominik's Regards

Mortal Reminder

Maw of Malmortius

Sterak's Gage

Guardian Angel

Serpent's Fang

Armor Options

Frozen Heart

Randuin's Omen

Knight's Vow

Thornmail

MR Options

Kaenic Rookern

Spirit Visage

Abyssal Mask

Build Examples

Standard Tempo

Spear of Shojin

Endless Hunger

Death's Dance

Maw of Malmortius

Serylda's Grudge

Ionian Boots of Lucidity

Standard Low Economy

Eclipse

Black Cleaver

Death's Dance

Spirit Visage

Randuin's Omen

Plated Steelcaps

Lethality Rhaast

Youmuu's Ghostblade

Axiom Arc

Serylda's Grudge

Edge of Night

Guardian Angel

Plated Steelcaps

TANK KAYN vs AD

Eclipse

Death's Dance

Frozen Heart

Randuin's Omen

Knight's Vow

Plated Steelcaps

TANK KAYN vs AP

Eclipse

Maw of Malmortius

Death's Dance

Spirit Visage

Kaenic Rookern

Mercury's Treads

EU BLACK MAGIC KAYN

Youmuu's Ghostblade

Black Cleaver

Endless Hunger

Death's Dance

Maw of Malmortius

Plated Steelcaps

Don't Build ("Bait" Options)

Force of Nature

Chempunk Chainsword

Overlord's Bloodmail

Sundered Sky

Additional Tips

Eye of the Herald

Ability Order Red Start

1 2

The Darkin Scythe (PASSIVE)

Kayn Passive Ability

Reaping Slash (Q)

Blade's Reach (W)

Shadow Step (E)

Umbral Trespass (R)

The Darkin Scythe (PASSIVE)

Kayn Passive Ability

Reaping Slash (Q)

Blade's Reach (W)

Shadow Step (E)

Umbral Trespass (R)

Threats & Synergies

Threats

Synergies

Extreme Major Even Minor Tiny

Show All

None Low Ok Strong Ideal

Extreme Threats

Ideal Synergies

Zyra

Extreme

Difficult to fight through slows and constant tick damage.

Ivern

Extreme

Can help team to sustain your combo, disrupt your early clears, and pin you down in team fights

Briar

Tiny

Easiest low elo Kayn matchup to farm for free LP. Take Conquerer + Ignite, wait out her frenzy and treat her as a free orb button in the early game.

Dr. Mundo

Tiny

Hard to fight before form, but once you have Red he cannot breathe. Don't let your ego get the best of him and time your Ignite with his R.

Poppy

Major

Less oppressive as Rhaast but still difficult, look to buffer her CC with your W and play the opposite side of the map early game when possible.

Kayn

Tiny

Rhaast has just as much, if not more 1v9 potential than Shadow Assassin. Test your limits and know when it's time to E, Q or R away, but don't be afraid of death when you can make a game-winning play.

Cho'Gath

Minor

While on paper Cho is another healing battery for Rhaast, his silence + knockup combo can catch you off guard if you aren't respecting him. Don't greed too hard on your R because his R will humble you.

Viego

Minor

You completely outduel Viego at every point of the game as Kayn. Use E and R to stop him from disengaging and punish him for hastily jumping onto carries.

Yasuo

Strong

Great synergy with your W knockup but he can skew your comp towards being too AD Heavy.

Diana

Ideal

Diversifies your damage profile and creates strong checkmate scenarios around your W knockup.

Kayle

Ideal

Big AOE to combo with your W, R gives you a second safety net, and comes online at a similar time to Rhaast, giving you a great timer to flip top side if Kayle has kept the game decent neutral.

Samira

Strong

Passive lets her use your W to gap-close and her R synergizes with your AOE clearing style.

Pantheon

Ideal

Strong gank setup in any of his roles and elevated map presence through his R

Zilean

Strong

Gives Rhaast everything he could want, MS, CC, and safety. Can make bot lane ganks a bit tougher without a proper angle but still a strong duo.

Shen

Ideal

Big shield on R that can combo with your Death's Dance to save risky dives, E and W can make you immortal in a team fight. Also ensures your top lane matchup won't snowball out of control before you get form and sets up easy ganks.

Synergies

Ideal Strong Ok Low None

Yasuo

Strong

Great synergy with your W knockup but he can skew your comp towards being too AD Heavy.

Diana

Ideal

Diversifies your damage profile and creates strong checkmate scenarios around your W knockup.

Kayle

Ideal

Big AOE to combo with your W, R gives you a second safety net, and comes online at a similar time to Rhaast, giving you a great timer to flip top side if Kayle has kept the game decent neutral.