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Matchup

Karthus
Karthus
17%
83%

vs

50.0%
Riven
Riven
89%
11%
Heavy AD damageDive threatSplit pushHigh burst

Build vs Riven

Build adapted to this matchup

Starting items

Scorchclaw Pup

Core build

Dark Seal
1
Blackfire Torch
2Mage
Liandry's Torment
3Mage tank

Standard

Sorcerer's Shoes
4Magic pen
Shadowflame
5vs Tank

Summoner spells

41156%
31138%

Anti AD

Plated Steelcaps
4vs AD
Zhonya's Hourglass
5vs AD

Anti CC

Mercury's Treads
4vs CC

Anti Tank

Shadowflame
5vs Tank
Void Staff
vs Tank
Stormsurge
vs Tank

DPS

Rabadon's Deathcap
Mage
Malignance
Mage
100.0% WR3 games
SorcerySorcery
Deathfire TouchDeathfire Touch
Axiom ArcanistAxiom Arcanist
Absolute FocusAbsolute Focus
Gathering StormGathering Storm
DominationDomination
Ultimate HunterUltimate Hunter
Cheap ShotCheap Shot
Adaptive ForceAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
KarthusKarthus
RivenRiven
Passive
Favorable
Favorable

Riven's abilities

Passive, spells and ultimate

Runic Blade (P)

Riven's abilities charge her blade, and her basic attacks expend charges to deal an additional damage.

Cooldowns

Cooldowns by spell rank

LevelQWER
313s11s10s–
613s11s10s2m
913s10s10s2m
1113s9s10s1m30
1613s7s8s1m
1813s7s6s1m

Playing against Riven

How to counter and exploit weaknesses

1

Punish her between combos: Riven has cooldowns between Q casts, and when everything is on CD she can't do anything.

2

Her E shield has a 10-6s cooldown: trade after it expires.

3

Champions who stack armor and take short trades counter her well (Malphite, Poppy).

4

Respect her level 6: the R burst + Ignite is often a kill if you're below 60% HP.

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