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Matchup

Corki
Corki
57%
43%

vs

50.0%
Kassadin
Kassadin
27%
73%
Heavy AP damageHigh burstDive threatSplit push

Build vs Kassadin

Build adapted to this matchup

Starting items

Doran's Blade
Health Potion

Core build

Essence Reaver
1DPS
Hexoptics C44
2DPS
Infinity Edge
3DPS

Standard

Boots of Swiftness
4vs Slow
Trinity Force
5DPS

Summoner spells

421100%

Anti AD

Plated Steelcaps
4vs AD
Guardian Angel
5vs AD

Anti Heal

Mortal Reminder
6vs Hybride

Anti Tank

Lord Dominik's Regards
5vs Tank

DPS

Trinity Force
DPS
Rapid Firecannon
DPS
Bloodthirster
DPS

Other options

Muramana
100.0% WR1 games
PrecisionPrecision
ConquerorConqueror
Presence of MindPresence of Mind
Legend: AlacrityLegend: Alacrity
Cut DownCut Down
InspirationInspiration
Triple TonicTriple Tonic
Cash BackCash Back
Attack SpeedAdaptive ForceHealth

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
CorkiCorki
KassadinKassadin
Neutral
Neutral
Neutral

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