Matchup

Heavy AP damageHigh burstDive threatSplit push

Build vs Kassadin

Build adapted to this matchup

Starting items

Gustwalker Hatchling

Core build

Spear of Shojin
1Bruiser
Black Cleaver
2vs Tank
Death's Dance
3vs AD

Standard

Ionian Boots of Lucidity
4CDR
Endless Hunger
5DPS

Summoner spells

611100%

Anti AD

Plated Steelcaps
4vs AD
Guardian Angel
5vs AD
Dead Man's Plate
vs AD

Anti AP

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

Anti Tank

Youmuu's Ghostblade
5vs Tank

DPS

Endless Hunger
DPS
SorcerySorcery
Stormraider's SurgeStormraider's Surge
Nimbus CloakNimbus Cloak
CelerityCelerity
WaterwalkingWaterwalking
PrecisionPrecision
Legend: HasteLegend: Haste
TriumphTriumph
Adaptive ForceAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

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