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Matchup

Jax
Jax
50%
50%

vs

50.0%
Kog'Maw
KogMaw
62%
38%
Sustained DPSHeavy AD damageHeavy AP damage

Build vs Kog'Maw

Build adapted to this matchup

Starting items

Doran's Shield
Health Potion

Core build

Trinity Force
1DPS
Statikk Shiv
2DPS
Zhonya's Hourglass
3vs AD

Standard

Boots of Swiftness
4vs Slow
Sundered Sky
5Bruiser

Summoner spells

41449%
41229%

Anti AD

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

Anti AP

Mercury's Treads
4vs CC
Wit's End
5vs AP

DPS

Sundered Sky
Bruiser
Stridebreaker
Bruiser
Dusk and Dawn
Mage tank
Hextech Gunblade
Mage
Hextech Rocketbelt
Mage tank
Blade of The Ruined King
DPS

Other options

Sterak's Gage
Survival
100.0% WR1 games
PrecisionPrecision
Lethal TempoLethal Tempo
TriumphTriumph
Legend: AlacrityLegend: Alacrity
Last StandLast Stand
ResolveResolve
UnflinchingUnflinching
Bone PlatingBone Plating
Attack SpeedAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
JaxJax
KogMawKog'Maw
Neutral
Neutral
Neutral

Kog'Maw's abilities

Passive, spells and ultimate

Icathian Surprise (P)

4 seconds after dying, Kogmaw explodes, dealing true damage to surrounding enemies.

Cooldowns

Cooldowns by spell rank

LevelQWER
37s17s12s–
67s17s12s2s
97s17s12s2s
117s17s12s1.5s
167s17s12s1s
187s17s12s1s

Playing against Kog'Maw

How to counter and exploit weaknesses

1

Kog'Maw has ZERO mobility — dive him with assassins or engages. One CC = one kill.

2

His W has an uptime/downtime: when W expires, his range returns to normal (500). Engage at that moment.

3

Assassins (Zed, Talon, Fizz) destroy him — he relies entirely on his team to protect him.

4

Buy HP and MR: his W deals magic damage as % max HP, but MR still reduces it.

Source: op.gg + LTL Engine · Patch 16.9.1 · May 9, 2026