Matchup

Heavy AP damageHigh burstDive threatSplit push

Build vs Kassadin

Build adapted to this matchup

Starting items

Doran's Shield
Health Potion

Core build

Stridebreaker
1Bruiser
Phantom Dancer
2DPS
Hullbreaker
3Bruiser

Standard

Berserker's Greaves
4AS
Mortal Reminder
5vs Hybride

Summoner spells

41490%
4126%

Anti AD

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

Anti Heal

Mortal Reminder
6vs Hybride

Anti AP

Mercury's Treads
4vs CC
Force of Nature
5vs AP

Anti Tank

Serpent's Fang
5vs Tank
Black Cleaver
vs Tank
Youmuu's Ghostblade
vs Tank

DPS

Infinity Edge
DPS
Spear of Shojin
Bruiser

Other options

Sterak's Gage
Survival
100.0% WR1 games
PrecisionPrecision
ConquerorConqueror
TriumphTriumph
Legend: HasteLegend: Haste
Last StandLast Stand
SorcerySorcery
Axiom ArcanistAxiom Arcanist
CelerityCelerity
Adaptive ForceAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
GarenGaren
KassadinKassadin
Favorable
Favorable
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