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Matchup

Thresh
Thresh
45%
55%

vs

50.0%
Sylas
Sylas
27%
73%
Heavy AP damageHigh burstDive threatHigh sustain

Build vs Sylas

Build adapted to this matchup

Starting items

Health Potion
x2

Core build

Locket of the Iron Solari
1HP
Knight's Vow
2vs AD
Thornmail
3vs Hybride

Standard

Boots of Swiftness
4vs Slow
Celestial Opposition
5HP

Summoner spells

41473%
3415%

Anti AD

Plated Steelcaps
4vs AD
Bandlepipes
5vs Hybride
Frozen Heart
vs AD
Randuin's Omen
vs AD
Dead Man's Plate
vs AD

Anti AP

Mercury's Treads
4vs CC
Kaenic Rookern
5vs AP
Force of Nature
vs AP
Abyssal Mask
vs AP
Spirit Visage
vs AP

DPS

Hextech Rocketbelt
Mage tank

Other options

Celestial Opposition
HP
Solstice Sleigh
HP
Zeke's Convergence
Tank
Mikael's Blessing
HP
Redemption
Protoplasm Harness
Survival
Bloodsong
HP
Shurelya's Battlesong
Jak'Sho, The Protean
vs Hybride
Warmog's Armor
Survival
Heartsteel
Survival
87.5% WR8 games
ResolveResolve
AftershockAftershock
Font of LifeFont of Life
Bone PlatingBone Plating
UnflinchingUnflinching
InspirationInspiration
Biscuit DeliveryBiscuit Delivery
Cosmic InsightCosmic Insight
Adaptive ForceAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
ThreshThresh
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