Matchup

Heavy AP damageHigh burstDive threatSplit push

Build vs Kassadin

Build adapted to this matchup

Starting items

Scorchclaw Pup
Health Potion

Core build

Liandry's Torment
1Mage tank
Rylai's Crystal Scepter
2Mage tank
Zhonya's Hourglass
3vs AD

Standard

Sorcerer's Shoes
4Magic pen
Shadowflame
5vs Tank

Anti CC

Mercury's Treads
4vs CC

Anti Tank

Shadowflame
5vs Tank
Bloodletter's Curse
vs Tank

DPS

Rabadon's Deathcap
Mage
Cosmic Drive
Mage tank

Other options

Morellonomicon
vs Heal

Power Spikes

Strength by game phase

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