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Karthus vs Sylas

Karthus
vs
51.8%

over 855 games

Sylas
Analyze a draft with Karthus

Skill matchup

Heavy AP damageHigh burstDive threatHigh sustain

Build vs Sylas

Build adapted to this matchup

Recommended items for Karthus: Blackfire Torch, Shadowflame, Rabadon's Deathcap, Sorcerer's Shoes, Liandry's Torment, Zhonya's Hourglass, Malignance, Void Staff.

Starting items

Scorchclaw Pup
Health Potion

Core build

Blackfire Torch
1
Shadowflame
2
Rabadon's Deathcap
3

Standard

Sorcerer's Shoes
4Magic pen
Liandry's Torment
5

Summoner spells

ExhaustSmite56%
FlashSmite38%

Anti CC

Mercury's Treads
4vs CC

Other options

Liandry's Torment
Zhonya's Hourglass
Malignance
Void Staff
Dark Seal
Stormsurge
Oblivion Orb
Mejai's Soulstealer
Morellonomicon
Seeker's Armguard
Horizon Focus
Cryptbloom
Banshee's Veil
Rylai's Crystal Scepter
Actualizer
Bloodletter's Curse
57.9% WR152 games
DominationDomination
Dark HarvestDark Harvest
Cheap ShotCheap Shot
Grisly MementosGrisly Mementos
Ultimate HunterUltimate Hunter
SorcerySorcery
Axiom ArcanistAxiom Arcanist
Gathering StormGathering Storm
Adaptive ForceAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

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 as Karthus

Tips to maximize your impact

  1. Aim for isolated champions

    Aim Lay Waste (Q) at a champion away from their minions: if the blast hits only one enemy, it deals much more damage.

  2. Wall before your combo

    Place Wall of Pain (W) in their path before your combo: anyone who crosses it is slowed and loses magic resist.

  3. Keep playing after you die

    After you die, keep casting your spells: Death Defied (passive) keeps you in spirit form for a while, and you can still cast Lay Waste (Q) and Requiem (R).

  4. Requiem for the finish

    Save Requiem (R) to finish off wounded enemies, often right after a teamfight: it hits every enemy champion wherever they are, after a 3-second channel.

Playing against Sylas

How to counter and exploit weaknesses

  1. Keep minions between his chain and you

    Stay behind your minions after his Abscond (E): the Abduct (E) chain pulls him to the first enemy hit, and only that one takes the knock-up.

  2. Don't trust his low health

    Don't go all-in just because his health is low: Kingslayer (W) heals him more as he loses health.

  3. Back off after each of his spells

    Get out of his range as soon as he casts a spell: each spell charges Petricite Burst (passive), and his next auto hits around him with bonus magic damage.

  4. Fight when he can't steal from you

    Take the fight when Hijack (R) is on cooldown: he then can't copy your ult and turn it against your team.

Other Karthus matchups

Patch 16.21.1