Matchup

Karthus
Karthus
17%
83%

vs

47.4%

over 428 games

Ekko
Ekko
42%
58%
High burstHeavy AP damageDive threatSplit push

Skill matchup

Build vs Ekko

Build adapted to this matchup

Starting items

Scorchclaw Pup
Health Potion

Core build

Malignance
1Mage
Shadowflame
2vs Tank
Zhonya's Hourglass
3vs AD

Standard

Sorcerer's Shoes
4Magic pen
Blackfire Torch
5Mage

Summoner spells

41149%
31146%

Anti CC

Mercury's Treads
4vs CC

Anti Tank

Void Staff
5vs Tank
Stormsurge
vs Tank
Cryptbloom
vs Tank
Bloodletter's Curse
vs Tank

DPS

Blackfire Torch
Mage
Rabadon's Deathcap
Mage
Liandry's Torment
Mage tank
Actualizer
Mage
Horizon Focus
Mage
Rylai's Crystal Scepter
Mage tank

Other options

Mejai's Soulstealer
Morellonomicon
vs Heal
100.0% WR6 games
DominationDomination
Dark HarvestDark Harvest
Cheap ShotCheap Shot
Grisly MementosGrisly Mementos
Ultimate HunterUltimate Hunter
SorcerySorcery
Axiom ArcanistAxiom Arcanist
Gathering StormGathering Storm
Adaptive ForceAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

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

Ekko's abilities

Passive, spells and ultimate

Z-Drive Resonance (P)

Every third attack or damaging spell on the same target deals bonus magic damage, and grants Ekko a burst of speed if the target is a champion.

Cooldowns

Cooldowns by spell rank

LevelQWER
39s22s9s
68s22s9s1m50
97s20s9s1m50
117s18s9s1m20
167s14s8s50s
187s14s7s50s

Playing against Ekko

How to counter and exploit weaknesses

1

Watch Ekko's ghost clone: that's where his R will bring him back. Place CC or damage at that location.

2

His W has a 3s delay and a distinctive sound — if you hear it, leave the area immediately.

3

Ekko is an assassin: buy HP and MR to survive his initial burst. If he can't one-shot, he has to R out.

4

Don't chase him on his terms — he wants you to pursue him so he can R and burst you on the way back.

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