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Matchup

Amumu
Amumu
20%
80%

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

Mosstomper Seedling
Health Potion

Core build

Liandry's Torment
1Mage tank
Sunfire Aegis
2vs AD
Abyssal Mask
3vs AP

Standard

Boots of Swiftness
4vs Slow
Thornmail
5vs Hybride

Anti AD

Plated Steelcaps
4vs AD
Thornmail
5vs Hybride
Randuin's Omen
vs AD
Frozen Heart
vs AD

Anti AP

Mercury's Treads
4vs CC
Jak'Sho, The Protean
5vs Hybride
Kaenic Rookern
vs AP

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
AmumuAmumu
VexVex
Neutral
Neutral
Favorable

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