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Matchup

Leblanc
Leblanc
9%
91%

vs

46.3%

over 681 games

Kassadin
Kassadin
27%
73%
Heavy AP damageHigh burstDive threatSplit push

Skill matchup

Build vs Kassadin

Build adapted to this matchup

Starting items

Doran's Ring
Health Potion
x2

Core build

Luden's Echo
1Mage
Mejai's Soulstealer
2
Shadowflame
3vs Tank

Standard

Sorcerer's Shoes
4Magic pen
Rabadon's Deathcap
5Mage

Summoner spells

41491%
4128%

Anti AD

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

Anti Heal

Morellonomicon
6vs Heal

Anti AP

Mercury's Treads
4vs CC
Banshee's Veil
5vs AP

Anti Tank

Stormsurge
5vs Tank
Void Staff
vs Tank
Cryptbloom
vs Tank
Voltaic Cyclosword
vs Tank

DPS

Rabadon's Deathcap
Mage
Malignance
Mage
Hextech Gunblade
Mage
Statikk Shiv
DPS
Hextech Rocketbelt
Mage tank
Dusk and Dawn
Mage tank
Trinity Force
DPS
Horizon Focus
Mage
Lich Bane
Mage
Blackfire Torch
Mage
Liandry's Torment
Mage tank

Other options

Rod of Ages
HP
92.9% WR14 games
DominationDomination
ElectrocuteElectrocute
Sudden ImpactSudden Impact
Grisly MementosGrisly Mementos
Relentless HunterRelentless Hunter
SorcerySorcery
TranscendenceTranscendence
Gathering StormGathering Storm
Adaptive ForceAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
LeblancLeblanc
KassadinKassadin
Aggressive
Neutral
Passive

Kassadin's abilities

Passive, spells and ultimate

Void Stone (P)

Kassadin takes reduced magic damage and ignores unit collision.

Cooldowns

Cooldowns by spell rank

LevelQWER
310s7s21s–
69s7s21s5s
98s7s21s5s
118s7s21s3.5s
168s7s19s2s
188s7s17s2s

Playing against Kassadin

How to counter and exploit weaknesses

1

Punish Kassadin VERY hard in early game (levels 1-5): he's one of the weakest champions at that stage.

2

AD champions in midlane counter him: his passive and Q shield only work against magic damage.

3

Do NOT let the game go to late game: a level 16 Kassadin with his items is nearly impossible to stop.

4

His R consumes a lot of mana when stacking — force him to use multiple Rs to drain his mana.

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