Matchup

Riven
Riven
89%
11%

vs

53.7%

over 1221 games

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

Skill matchup

Build vs Mordekaiser

Build adapted to this matchup

Starting items

Doran's Blade
Health Potion

Core build

Eclipse
1DPS
Black Cleaver
2vs Tank
Sundered Sky
3Bruiser

Standard

Ionian Boots of Lucidity
4CDR
Axiom Arc
5vs Tank

Summoner spells

41497%
4122%

Anti AD

Plated Steelcaps
4vs AD
Death's Dance
5vs AD
Guardian Angel
vs AD
Randuin's Omen
vs AD

Anti Heal

Mortal Reminder
6vs Hybride

Anti AP

Mercury's Treads
4vs CC
Maw of Malmortius
5vs AP
Mercurial Scimitar
vs AP

Anti Heal

Chempunk Chainsword
6vs Heal

Anti Tank

Axiom Arc
5vs Tank
Serylda's Grudge
vs Tank
Serpent's Fang
vs Tank
Voltaic Cyclosword
vs Tank
Profane Hydra
vs Tank
Hubris
vs Tank
Lord Dominik's Regards
vs Tank
Umbral Glaive
vs Tank
The Collector
vs Tank
Edge of Night
vs Tank

DPS

Endless Hunger
DPS
Fiendhunter Bolts
DPS
Ravenous Hydra
DPS
Spear of Shojin
Bruiser

Other options

Sterak's Gage
Survival
75.0% WR16 games
PrecisionPrecision
ConquerorConqueror
TriumphTriumph
Legend: HasteLegend: Haste
Last StandLast Stand
InspirationInspiration
Jack Of All TradesJack Of All Trades
Cash BackCash Back
Ability HasteAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

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