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Matchup

Illaoi
Illaoi
73%
27%

vs

63.9%

over 72 games

Sylas
Sylas
27%
73%
Heavy AP damageHigh burstDive threatHigh sustain

Favorable matchup

You are stronger early — look to snowball before your opponent scales.

Build vs Sylas

Build adapted to this matchup

Starting items

Doran's Blade
Health Potion

Core build

Tear of the Goddess
1
Black Cleaver
2vs Tank
Sundered Sky
3Bruiser

Standard

Boots of Swiftness
4vs Slow
Iceborn Gauntlet
5vs AD

Summoner spells

41258%
3421%

Anti AD

Plated Steelcaps
4vs AD
Iceborn Gauntlet
5vs AD
Death's Dance
vs AD
Randuin's Omen
vs AD

Anti Heal

Thornmail
6vs Hybride

Anti AP

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

DPS

Hullbreaker
Bruiser
Spear of Shojin
Bruiser
Endless Hunger
DPS

Other options

Sterak's Gage
Survival
Executioner's Calling
Jak'Sho, The Protean
vs Hybride
100.0% WR2 games
ResolveResolve
Grasp of the UndyingGrasp of the Undying
DemolishDemolish
Bone PlatingBone Plating
OvergrowthOvergrowth
PrecisionPrecision
Presence of MindPresence of Mind
Last StandLast Stand
Adaptive ForceAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
IllaoiIllaoi
SylasSylas
Passive
Favorable
Favorable

Sylas's abilities

Passive, spells and ultimate

Petricite Burst (P)

After casting a spell, Sylas stores a charge of Petricite Burst. Sylas's basic attacks will expend a charge and whirl his energized chains around him dealing bonus magic damage to enemies hit. While Sylas has a charge of Petricite Burst, he gains attack speed.

Cooldowns

Cooldowns by spell rank

LevelQWER
310s12s13s–
68s12s13s1m20
96s10.5s13s1m20
116s9s13s55s
166s6s11s30s
186s6s9s30s

Playing against Sylas

How to counter and exploit weaknesses

1

If your ult is powerful (Malphite, Amumu, Cho'Gath), wait until Sylas has already stolen it and it's on CD before fighting.

2

Ults that scale with AD are less effective for Sylas since he builds AP — his ult steal is weaker against AD ults.

3

Sylas is relatively weak in early game: punish him before he steals an ult that changes the fight.

4

His E2 is a linear skillshot: side-step to avoid the dash + knockup.

Source: op.gg + LTL Engine · Patch 16.9.1 · May 8, 2026