Master Yi vs Karthus

Master Yi
vs
Not enough games
Karthus
High burstHeavy pokeCountered by stasisHeavy AP damage

You are stronger late game. Farm safe and avoid early trades.

Build vs Karthus

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

Recommended items for Master Yi: Blade of The Ruined King, The Collector, Lord Dominik's Regards, Gluttonous Greaves, Titanic Hydra, Infinity Edge, Death's Dance, Immortal Shieldbow.

Starting items

Doran's Bow
Health Potion
x2

Core build

Blade of The Ruined King
1
The Collector
2
Lord Dominik's Regards
3

Standard

Gluttonous Greaves
4
Titanic Hydra
5

Summoner spells

FlashDot100%

Anti CC

Mercury's Treads
4vs CC

Other options

Titanic Hydra
Infinity Edge
Death's Dance
Immortal Shieldbow
Guardian Angel
Experimental Hexplate
DominationDomination
Hail of BladesHail of Blades
Sudden ImpactSudden Impact
Grisly MementosGrisly Mementos
Treasure HunterTreasure Hunter
PrecisionPrecision
Legend: AlacrityLegend: Alacrity
TriumphTriumph
Attack SpeedAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

Karthus's abilities

Passive, spells and ultimate

Death Defied (P)

Upon dying, Karthus enters a spirit form that allows him to continue casting spells.

Cooldowns

Cooldowns by spell rank

LevelQWER
30s15s0.5s–
60s15s0.5s3m20
90s15s0.5s3m20
110s15s0.5s3m
160s15s0.5s2m40
180s15s0.5s2m40

Playing as Master Yi

Tips to maximize your impact

  1. Dodge with Alpha Strike

    Cast Alpha Strike (Q) to dodge a spell or a burst: you're untargetable during the strike, and your autos lower its cooldown.

  2. Meditate to tank damage

    Cast Meditate (W) to tank a burst mid-teamfight: you take less damage, heal more at low health, and the time left on Highlander (R) is paused.

  3. Activate Highlander to chase

    Activate Highlander (R) to chase: you gain move speed and attack speed, and slows no longer affect you.

  4. Chain your kills

    Chain kills in teamfights: each takedown lowers the remaining cooldown of your basic spells, and extends Highlander (R) if it's active.

Playing against Karthus

How to counter and exploit weaknesses

  1. Stay near your minions

    Stay near your minions or your allies: Lay Waste (Q) deals much more damage when the blast hits only one enemy.

  2. Jump on him if you can

    If you can engage, jump on him: Karthus has no dash or leap to escape.

  3. Don't stay low once he hits 6

    Once he hits level 6, back instead of staying at low health: Requiem (R) hits every enemy champion wherever they are, 3 seconds after he starts channeling.

  4. Save your protection for Requiem

    If you have a shield, a heal or invulnerability, save it for Requiem (R): it hits every enemy champion 3 seconds after he starts channeling.

  5. Move away after he dies

    Once Karthus is dead, move away: Death Defied (passive) keeps him in spirit form for a while, and he can still cast his spells.

Patch 16.21.1