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Karthus vs Xerath

Karthus
vs
Not enough games
Xerath
Analyze a draft with Karthus
Heavy pokeHeavy AP damageHigh burstHeavy CC

Build vs Xerath

The champion's reference build, for lack of enough games in this matchup

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

Starting items

Scorchclaw Pup
Health Potion

Core build

Blackfire Torch
1
Shadowflame
2
Rabadon's Deathcap
3

Standard

Sorcerer's Shoes
4Magic pen
Void Staff
5

Anti CC

Mercury's Treads
4vs CC

Other options

Void Staff
Zhonya's Hourglass
Stormsurge
Malignance

Power Spikes

Strength by game phase

Xerath's abilities

Passive, spells and ultimate

Mana Surge (P)

Xerath's basic attacks periodically restore Mana. Whenever Xerath kills a unit, this cooldown is reduced.

Cooldowns

Cooldowns by spell rank

LevelQWER
39s14s13s–
67s14s13s2m10
95s13s13s2m10
115s12s13s1m55
165s10s12s1m40
185s10s11s1m40

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 Xerath

How to counter and exploit weaknesses

  1. Stay behind your minions

    Keep minions between you and Xerath: Shocking Orb (E) stuns the first enemy hit, for longer the farther it has traveled.

  2. Change direction

    Don't stand still, and change direction often: Arcanopulse (Q) hits a target moving forward or backward in a straight line much more easily.

  3. Engage while he charges

    If you can engage, go in while he charges Arcanopulse (Q): he slows down by up to 50%, and he has no dash to escape.

  4. Interrupt his Rite of the Arcane

    If you have CC and can reach him during Rite of the Arcane (R), use it: he channels the ult, and interrupting it stops his shots.

Other Karthus matchups

Patch 16.21.1