Matchup

Heavy AD damageHigh sustainDive threatHigh burst

Build vs Kayn

Build adapted to this matchup

Starting items

Doran's Blade
Health Potion

Core build

Essence Reaver
1DPS
Navori Flickerblade
2DPS
Infinity Edge
3DPS

Standard

Berserker's Greaves
4AS
Lord Dominik's Regards
5vs Tank

Summoner spells

421100%

Anti AD

Plated Steelcaps
4vs AD
Guardian Angel
5vs AD

Anti Heal

Mortal Reminder
6vs Hybride

Anti AP

Mercury's Treads
4vs CC
Mercurial Scimitar
5vs AP

Anti Tank

Lord Dominik's Regards
5vs Tank

DPS

Bloodthirster
DPS
66.7% WR3 games
PrecisionPrecision
Lethal TempoLethal Tempo
Presence of MindPresence of Mind
Legend: BloodlineLegend: Bloodline
Coup de GraceCoup de Grace
InspirationInspiration
Magical FootwearMagical Footwear
Biscuit DeliveryBiscuit Delivery
Attack SpeedAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
XayahXayah
KaynKayn
Passive
Neutral
Aggressive

Kayn's abilities

Passive, spells and ultimate

The Darkin Scythe (P)

Kayn wields an ancient weapon and fights Rhaast, the darkin within it, for control. Either the Darkin will triumph, or Kayn will master Rhaast and become the Shadow Assassin.Darkin: Heal for a percentage of spell damage dealt to champions.Shadow Assassin: For the first few seconds in combat with enemy champions, deal bonus damage.

Cooldowns

Cooldowns by spell rank

LevelQWER
37s13s21s
66s13s21s2m
95s12s21s2m
115s11s21s1m40
165s9s17s1m20
185s9s13s1m20

Playing against Kayn

How to counter and exploit weaknesses

1

Ward beyond walls: Kayn passes through walls with his E, classic river wards aren't enough.

2

Blue form (assassin) is squishy: a CC kills him quickly. Red form (Rhaast) has sustain: Grievous Wounds is mandatory.

3

His R makes him untouchable — don't waste abilities when he's inside an ally.

4

Before his transformation, Kayn is relatively weak — invade his jungle early to delay his transformation.

Source: op.gg + LTL Engine · Patch 16.9.1 · May 9, 2026