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Matchup

Jax
Jax
50%
50%

vs

50.0%
Vex
Vex
0%
100%
Heavy AP damageHigh burstStrong engageCountered by spell shield

Build vs Vex

Build adapted to this matchup

Starting items

Doran's Shield
Health Potion

Core build

Dusk and Dawn
1Mage tank
Hullbreaker
2Bruiser
Hextech Gunblade
3Mage

Standard

Boots of Swiftness
4vs Slow
Riftmaker
5Mage tank

Summoner spells

41457%
41233%

Anti AD

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

Anti AP

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

DPS

Riftmaker
Mage tank
Sundered Sky
Bruiser
Trinity Force
DPS
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
VexVex
Careful
Careful
Aggressive

Vex's abilities

Passive, spells and ultimate

Doom 'n Gloom (P)

Vex periodically becomes empowered, causing her next basic Ability to fear enemies and interrupt dashes. Whenever a nearby enemy dashes, Vex applies a mark that can be consumed for bonus damage that also reduces the cooldown of her empowered state.

Cooldowns

Cooldowns by spell rank

LevelQWER
38s16s13s–
66s16s13s2m20
94s15s13s2m20
114s14s13s2m
164s12s13s1m40
184s12s13s1m40

Playing against Vex

How to counter and exploit weaknesses

1

Vex is weak against champions WITHOUT dashes: her anti-dash passive doesn't proc if you don't dash.

2

Her R is a skillshot: dodge the missile and she can't dash to you.

3

Punish her when her fear passive is on cooldown (the indicator below her is grayed out when unavailable).

4

Long-range champions without mobility (Xerath, Vel'Koz) counter her well.

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