Borderlands 4 Best Vex Build Guide

Vex is the most flexible Siren yet, blending high-damage gunplay, summon-heavy minions, and elemental adaptability through her Phase Covenant trait. Instead of sticking to just one tree, the strongest build mixes elements from all three skill paths. This hybrid setup gives you the best of mob-clearing, survivability, and boss-melting power.

Best Vex Hybrid Build Overview

Action Skill: Phase Phamiliar (Here Comes Trouble)
Favoured Element: Shock (with situational swaps for boss weaknesses)
Main Trees: Here Comes Trouble + Dead Ringer (with splash from Vexcalation)
Playstyle: Summon-focused gun damage with strong Kill Skill chains and overshields

This build keeps Trouble (her spectral companion) active at all times while also bringing in Dead Ringer’s minion synergy and a few top-tier Vexcalation perks for crits and bleed damage. The end result is a Siren who thrives in chaos, survives longer, and snowballs harder as the fight goes on.

Key Skills to Take

Here Comes Trouble Tree

Grave Sustenance (5/5): Keeps action skills rolling longer.
Yowl and Bay (5/5): Boosts minion health and grants you bonus gun damage after commanding Trouble.
Claw and Bang (5/5): Extra melee and ordnance damage for you and Trouble.
Overprotective (3/5): Overshields for both you and Trouble.
Trouble Bubble (Capstone): Trouble gains overshields while damaging enemies and applies an elemental aura.

Dead Ringer Tree

Cold Iron (5/5): Boosts gun damage for both you and your summons.
Fell Inscriptions (5/5): Bonus melee damage and health for minions.
Obedient Fiends (5/5): Increases minion damage across the board.
Ancient Rites (5/5): Damage stacking based on active minions.
Blood Sacrifice (1/1): Triggers Kill Skills when minions die.

Vexcalation Tree (Splash Points)

Leeching Attunement (3/5): Lifesteal and reload speed while attuned to Shock.
Grave Sights (3/5): Extra crit damage and weapon handling.
Mortal Terror (3/3): Chance to trigger Kill Skills on critical hits.
Blood is Power (3/3): Bonus gun damage based on lifesteal when health is full.

Best Augments

Hexus Nexus (Here Comes Trouble): Trouble taunts enemies and becomes a tank, giving you more space to unload.
Wither (Dead Ringer): Your spectres apply a damage-taking debuff.

Together, these augments make your summons disrupt enemies while you tear through targets with elemental weapons.

Weapons and Gear

Best Weapon Type: SMGs and shotguns for close-to-mid combat.
Best Manufacturer: Maliwan (for elemental swapping) and Jakobs (for ricochet crits).
Repkits: Look for Infusion, Fiendish Invigoration, and any that buff crit chance or minion damage.
Class Mods: Prioritize bonuses to Obedient Fiends, Yowl and Bay, and Mortal Terror.

Build Playstyle

Start fights by summoning Trouble, then send him to taunt enemies. This keeps aggro off you while boosting your gun damage through Yowl and Bay. While minions fight, unload with high-fire-rate weapons, stacking crits and triggering Mortal Terror for free Kill Skills. Overshields from Overprotective and Trouble Bubble keep you alive even in large mob fights.

Against bosses, rely on Shock weapons for shield shredding, swap to corrosive for armor, or incendiary for flesh. Trouble tanks the boss while your minions and crit buffs stack Ancient Rites, giving you burst DPS.

Final Blurb

The best Vex build in Borderlands 4 pulls from all three trees, not just one. With Trouble tanking, minions stacking damage, and Vex herself chaining crit-based Kill Skills, this hybrid setup handles both mobbing and bosses with ease.

It’s a true jack-of-all-trades Siren build that rewards aggressive, fast-paced play.

FAQ

Can Vex use more than one minion with this build?

Yes. Trouble is your main summon, but Dead Ringer skills let you run additional reapers or spectres for more stacks and damage.

Why pick Shock as the main element?

Shock is strong against shields and flexible across enemy types, but you should swap to corrosive or incendiary when facing heavy armor or flesh.

Is this build good for solo play?

Absolutely. Trouble tanks enemies, overshields keep you alive, and lifesteal ensures sustain, making it ideal for solo runs.

What class mods are best in the endgame?

Mods that boost Obedient Fiends, Yowl and Bay, and Mortal Terror synergize best. They give Trouble more durability while letting you hit harder with crits.