Matchup

Heavy AP damageHigh burstDive threatSplit push

Build vs Kassadin

Build adapted to this matchup

Starting items

Health Potion
x2

Core build

Locket of the Iron Solari
1HP
Zeke's Convergence
2Tank
Knight's Vow
3vs AD

Standard

Boots of Swiftness
4vs Slow
Celestial Opposition
5HP

Anti AD

Plated Steelcaps
4vs AD
Thornmail
5vs Hybride
Frozen Heart
vs AD
Randuin's Omen
vs AD

Anti CC

Mercury's Treads
4vs CC

Other options

Celestial Opposition
HP
Protoplasm Harness
Survival

Power Spikes

Strength by game phase

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