Matchup

Heavy AP damageHigh burstDive threatSplit push

You are stronger late game — farm safe and avoid early trades.

Build vs Kassadin

Build adapted to this matchup

Starting items

Doran's Blade
Health Potion

Core build

The Collector
1vs Tank
Fiendhunter Bolts
2DPS
Infinity Edge
3DPS

Standard

Boots of Swiftness
4vs Slow
Lord Dominik's Regards
5vs Tank

Summoner spells

421100%

Anti AD

Plated Steelcaps
4vs AD
Death's Dance
5vs AD
Guardian Angel
vs AD

Anti CC

Mercury's Treads
4vs CC

Anti Tank

Lord Dominik's Regards
5vs Tank

DPS

Immortal Shieldbow
DPS
Bloodthirster
DPS
100.0% WR1 games
PrecisionPrecision
ConquerorConqueror
TriumphTriumph
Legend: BloodlineLegend: Bloodline
Last StandLast Stand
ResolveResolve
ConditioningConditioning
RevitalizeRevitalize
Attack SpeedAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

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