Matchup

Kayn
Kayn
91%
9%

vs

51.4%

over 2332 games

Rengar
Rengar
78%
22%
Heavy AD damageHigh burstDive threat

Skill matchup

Build vs Rengar

Build adapted to this matchup

Starting items

Gustwalker Hatchling
Health Potion

Core build

Voltaic Cyclosword
1vs Tank
Hubris
2vs Tank
Axiom Arc
3vs Tank

Standard

Ionian Boots of Lucidity
4CDR
Death's Dance
5vs AD

Summoner spells

41197%
11143%

Anti AD

Plated Steelcaps
4vs AD
Death's Dance
5vs AD
Guardian Angel
vs AD
Randuin's Omen
vs AD

Anti Heal

Mortal Reminder
6vs Hybride

Anti AP

Mercury's Treads
4vs CC
Spirit Visage
5vs AP
Maw of Malmortius
vs AP

Anti Heal

Thornmail
6vs Hybride

Anti Tank

Serylda's Grudge
5vs Tank
Edge of Night
vs Tank
Black Cleaver
vs Tank
Serpent's Fang
vs Tank
Youmuu's Ghostblade
vs Tank
Umbral Glaive
vs Tank
Bastionbreaker
vs Tank
Lord Dominik's Regards
vs Tank
The Collector
vs Tank
Profane Hydra
vs Tank

DPS

Eclipse
DPS
Spear of Shojin
Bruiser
Endless Hunger
DPS
Sundered Sky
Bruiser

Other options

Sterak's Gage
Survival
Chempunk Chainsword
vs Heal
66.7% WR45 games
DominationDomination
Dark HarvestDark Harvest
Sudden ImpactSudden Impact
Grisly MementosGrisly Mementos
Treasure HunterTreasure Hunter
InspirationInspiration
Magical FootwearMagical Footwear
Cosmic InsightCosmic Insight
Adaptive ForceAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
KaynKayn
RengarRengar
Careful
Neutral
Neutral

Rengar's abilities

Passive, spells and ultimate

Unseen Predator (P)

While in Brush, Rengar leaps at his target with his basic attack.Rengar generates Ferocity whenever he casts an ability. At Max Ferocity, his next ability is empowered.Killing enemy champions awards trophies on Rengar's Bonetooth Necklace, granting bonus attack damage.

Cooldowns

Cooldowns by spell rank

LevelQWER
30.25s0.25s0.25s
60.25s0.25s0.25s1m40
90.25s0.25s0.25s1m40
110.25s0.25s0.25s1m30
160.25s0.25s0.25s1m20
180.25s0.25s0.25s1m20

Playing against Rengar

How to counter and exploit weaknesses

1

The "!" above your head means Rengar is invisible and nearby — group up immediately.

2

Control wards and Sweeper reveal him in R — place them in teamfights to protect the carry.

3

Don't position near bushes in lane: he leaps for free from bushes.

4

Zhonya's or Guardian Angel are essential for carries — they survive the initial burst.

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