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Matchup

RekSai
Rek'Sai
80%
20%

vs

50.0%
Mordekaiser
Mordekaiser
36%
64%
Heavy AP damageSustained DPSCountered by stasisHigh sustain

Build vs Mordekaiser

Build adapted to this matchup

Starting items

Scorchclaw Pup

Core build

Titanic Hydra
1Bruiser
Spear of Shojin
2Bruiser
Maw of Malmortius
3vs AP

Standard

Boots of Swiftness
4vs Slow
Stridebreaker
5Bruiser

Summoner spells

411100%

Anti AD

Plated Steelcaps
4vs AD
Death's Dance
5vs AD
Guardian Angel
vs AD
Dead Man's Plate
vs AD

Anti AP

Mercury's Treads
4vs CC
Spirit Visage
5vs AP

Anti Tank

Black Cleaver
5vs Tank
Serpent's Fang
vs Tank

DPS

Stridebreaker
Bruiser
Eclipse
DPS

Other options

Sterak's Gage
Survival
100.0% WR1 games
PrecisionPrecision
ConquerorConqueror
TriumphTriumph
Legend: AlacrityLegend: Alacrity
Coup de GraceCoup de Grace
InspirationInspiration
Magical FootwearMagical Footwear
Cosmic InsightCosmic Insight
Attack SpeedAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
RekSaiRek'Sai
MordekaiserMordekaiser
Aggressive
Careful
Careful

Mordekaiser's abilities

Passive, spells and ultimate

Darkness Rise (P)

Mordekaiser gains a powerful damage aura and Move Speed after landing 3 attacks or spells against champions or monsters.

Cooldowns

Cooldowns by spell rank

LevelQWER
38s12s18s–
66s12s18s2m20
94s11s18s2m20
114s10s18s2m
164s8s14s1m40
184s8s10s1m40

Playing against Mordekaiser

How to counter and exploit weaknesses

1

Buy a QSS to escape his R — it's essential for carries who don't want to be isolated.

2

Kite him: Mordekaiser is slow with no dash. Ranged champions and slows counter him well.

3

His E (pull) has a visible delay: sidestep when you see the animation.

4

% max HP damage counters him since he builds HP: Vayne, Kog'Maw, and Liandry's are effective.

Source: op.gg + LTL Engine · Patch 16.9.1 · May 9, 2026