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Matchup

Vex
Vex
0%
100%

vs

50.0%
Jax
Jax
50%
50%
Split pushHeavy AD damageSustained DPSDive threat

Build vs Jax

Build adapted to this matchup

Starting items

Doran's Ring
Health Potion
x2

Core build

Luden's Echo
1Mage
Shadowflame
2vs Tank
Rabadon's Deathcap
3Mage

Standard

Sorcerer's Shoes
4Magic pen
Zhonya's Hourglass
5vs AD

Summoner spells

41250%
41450%

Anti AD

Plated Steelcaps
4vs AD
Zhonya's Hourglass
5vs AD

Anti CC

Mercury's Treads
4vs CC

Anti Tank

Void Staff
5vs Tank
Stormsurge
vs Tank

Other options

Dark Seal
100.0% WR2 games
DominationDomination
ElectrocuteElectrocute
Cheap ShotCheap Shot
Sixth SenseSixth Sense
Relentless HunterRelentless Hunter
PrecisionPrecision
Cut DownCut Down
Legend: HasteLegend: Haste
Adaptive ForceAdaptive ForceHealth

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
VexVex
JaxJax
Favorable
Favorable
Passive

Jax's abilities

Passive, spells and ultimate

Relentless Assault (P)

Jax's consecutive basic attacks continuously increase his Attack Speed.

Cooldowns

Cooldowns by spell rank

LevelQWER
38s7s17s–
67s7s17s1m50
96s6s17s1m50
116s5s17s1m40
166s3s13s1m30
186s3s9s1m30

Playing against Jax

How to counter and exploit weaknesses

1

Do NOT take extended trades against Jax: his attack speed passive and E make him stronger the longer the fight goes.

2

When his E is active, don't auto-attack him — use abilities instead because he only blocks autos.

3

Punish him when his E is on cooldown (16-8s): it's his main defense.

4

Jax is one of the best split pushers in the game — don't leave him alone in a side lane in the late game.

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