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Borderlands 4

Vex Leveling Build

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Vex Leveling Build

This is the best Vex build utilizing the Phase Phamiliar summon in Borderlands 4. See the Siren best build, skills, guns, and gear to use for Vex, along with a leveling guide and character playstyle here!

All Vex Guides
Best Builds Cosmetics Skill Trees and Voice Actor
Leveling Build Boss Farm Build Bleed Build

Vex Leveling Build Updates

October 9 Patch

・All Pets from all classes (such as Trouble, Specters, Reapers, and Forgeweapons) now properly gain Critical Hit Chance from Passives and Gear

Note: Only Changes that affect this build are listed above

The October 9 update gives another slight buff to the Vex Leveling build, allowing Trouble to gain more Critical Hit Chance from skills and gear.

The changes here impact the Leveling Build only slightly, since Trouble's main role in this build is as a Tank.

October 9 Update and Patch Notes

October 2 Patch

Action Skills – Phase Phamiliar
Trouble Health increased by 10%
Trouble Damage increased by 21.9%

Note: Only Changes that affect this build are listed above

With the October 2 update, additional buffs were given to Vex, which mainly target some of her weaker skills.

For the Leveling Build, Trouble now has increased Health and Damage, giving a slight bump to your overall DPS, making this build now stronger than before!

October 2 Update and Patch Notes

Vex Leveling Build Strengths and Weaknesses

Strengths Weaknesses
✔︎Easy-to-use build
✔︎Trouble reliably draws enemy aggro
✔︎Trouble can solo clear mobs in lower difficulties
✖︎Requires constant Trouble management
✖︎Relies on Repkit to boost damage
✖︎Long command skill cooldowns

Vex' Leveling build shines in its ability to use Trouble to draw enemy aggro away from Vex. This allows you to freely cause chaos against enemies, without having to worry much about being swarmed by mobs.

With your Augment and Capstone setup focusing on Trouble drawing aggro, you need to command Trouble to attack priority targets such as Badasses and Bosses to improve Vex' gun damage, which can prove to be tricky, especially when facing multiple enemies at a time.

Vex Leveling Build Best Skills

Best Action Skill

Skill Tree Phase FamiliarHere Comes Trouble
Action Skill: Phase Phamiliar

The Here Comes Trouble tree with the Phase Phamiliar action skill is our pick for the Leveling build. This skill tree focuses on survivability through healing and overshields with Kill Skills while steadily ramping up your damage with guns, ordnances, and your loyal summon, Trouble.

With your Minion, you can tear through enemy hordes using Trouble alongside your guns and ordnance. Trouble also draws plenty of enemy aggro, giving you more room to survive and control the battlefield.

Best Passive Skills

Here Comes Trouble
Vexcalation
Skill Tree Priority Skills
Phase FamiliarHere Comes Trouble
Grave Sustenance Icon Grave Command Icon Yowl and Bay Icon Vorpal Fiends Icon Shocking Attunement Icon Infusion Icon
Skill Tree Priority Skills
Incarnate IconVexcalation
Guns and Needles Icon Grave Sights Icon Fiendish Invigoration Icon Channeling Icon Target Prescience Icon

Recommended Skill Progression

Recommended Skill Progression
Grave Sustenance Icon Lvl 2 Grave Sustenance Icon Lvl 3 Grave Sustenance Icon Lvl 4 Grave Sustenance Icon Lvl 5
Grave Sustenance Icon Lvl 6 Yowl and Bay Icon Lvl 7 Grave Command Icon Lvl 8 Yowl and Bay Icon Lvl 9
Yowl and Bay Icon Lvl 10 Yowl and Bay Icon Lvl 11 Yowl and Bay Icon Lvl 12 Grave Command Icon Lvl 13
Vorpal Fiends Icon Lvl 14 Grave Command Icon Lvl 15 Vorpal Fiends Icon Lvl 16 Shocking Attunement Icon Lvl 17
Shocking Attunement Icon Lvl 18 Shocking Attunement Icon Lvl 19 Shocking Attunement Icon Lvl 20 Shocking Attunement Icon Lvl 21
Guns and Needles Icon Lvl 22 Guns and Needles Icon Lvl 23 Infusion Icon Lvl 24 Infusion Icon Lvl 25
Infusion Icon Lvl 26 Infusion Icon Lvl 27 Infusion Icon Lvl 28 Guns and Needles Icon Lvl 29
Grave Sights Icon Lvl 30 Grave Sights Icon Lvl 31 Fiendish Invigoration Icon Lvl 32 Fiendish Invigoration Icon Lvl 33
Fiendish Invigoration Icon Lvl 34 Fiendish Invigoration Icon Lvl 35 Fiendish Invigoration Icon Lvl 36 Target Prescience Icon Lvl 37
Target Prescience Icon Lvl 38 Target Prescience Icon Lvl 39 Target Prescience Icon Lvl 40 Target Prescience Icon Lvl 41
Vorpal Fiends Icon Lvl 42 Vorpal Fiends Icon Lvl 43 Vorpal Fiends Icon Lvl 44 Channeling Icon Lvl 45
Channeling Icon Lvl 46 Channeling Icon Lvl 47 Channeling Icon Lvl 48 Channeling Icon Lvl 49
Grave Sights Icon Lvl 50

From levels 2–16, focus on the passives in the Here Comes Trouble tree that buff your Summon, survivability, Kill Skill bonuses, and raw damage. These make Trouble incredibly powerful, especially during its Badass form.

At level 17, take the Hexus Nexus Augment, then start investing in Shocking Attunement, to rush unlocking your Unsealed Capstone.

As you approach the level cap, continue leveling passives and Kill Skills that enhance Repkits. Pick up Guns and Needles, and Fiendish Invigoration in the Vexcalation tree for more Repkit skills that synergize extremely well with Infusion.

Best Augment

Lvl 6 Lvl 16
Blink Strike Icon Blink Strike Hexus Nexus Icon Hexus Nexus

In the early game, use Blink Strike to finish off enemies below 50% HP. Later, swap it for Hexus Nexus, to draw aggro, allowing you to shoot at enemies freely.

Hexus Nexus effectively turns Trouble into a much stronger tank and crowd-control tool. Thanks to the max health, healing, and overshield passive skills invested, Trouble will stay healthy through most fights despite taking much of the aggro.

Best Capstone

Unsealed Icon Unsealed
Tree Here Comes Trouble
(Branch 3)
Effect
Trouble will now Mark his current target, causing them to take increased Gun Damage from Vex. Kill Skill. When a Marked enemy is killed, Trouble gains a Stack of Unsealed for a Duration, granting Health Regeneration and increased Damage. While Phase Phamiliar is active, Unsealed effects are doubled. This effect can stack.

Unsealed allows Trouble to mark enemies and receive +50% Gun Damage from Vex, making it an exceptional skill especially against Bosses and Badasses.

Command Trouble to attack enemies, then use a Repkit to stack multiple buffs, allowing you to blitz through even the tankiest enemies!

Vex Leveling Build Best Equipment

Jump to a Section!
Weapons Repkit Ordnance
Class Mod Shield Enhancement
Firmware

Best Weapons

Best Weapon Type for Vex: SMGs

SMGs are Vex’s best weapon choice. They complement her fast-paced playstyle as well, sticking close to Trouble and wreaking havoc up close.

Best Manufacturer for Vex: Maliwan

Maliwan weapons and licensed parts pair great with Vex, allowing Vex to make full use of Infusion, and receiving additional stats when using Shock Weapons from your Skills.

Best Repkit

Order Repkits

Repkits with an Order manufacturer will typically provide you with multiple charges of Repkit Use. This compliments the leveling build playstyle, allowing you to use one charge at any time to boost your damage from your skills, and still have remaining charges that you can use once you are low on health.

Best Ordnance

Grenade Unique Trait
SlippySlippy Swordfish: Deals Melee Damage on detonation.

Slippy is one of the best Ordnances you can use with this build, to capitalize on the aggro being drawn by Trouble.

Slippy can also be obtained early on, simply by fishing.

Fishing Guide: How to Fish

Best Class Mod

Teen Witch

Class Mod Effects
Teen Witch Recommended Skills:
Yowl and Bay Icon Vorpal Fiends Icon Infusion Icon
Legendary Bonus
When Vex has Maximum Health, her Lifesteal partially applies to Shields. When Vex has Maximum Shield, her Lifesteal partially grants Overshield.

Best Shield

Shield Unique Trait
OnionOnion Shallot Shell: On Armor Segment break, grants Immunity to Damage for 2s.

Onion provides Vex with additional defense, which you will eventually need especially if Trouble gets overwhelmed and goes on cooldown.

The damage immunity for 2 seconds should give you enough time to reposition, and wait for your Summon's cooldown, instead of being immediately put into Fight for Your Life mode.

Best Enhancements

Maliwan Enhancements

Enhancement Effects
Maliwan Enhancement Synthesizer - Guns with Maliwan-licensed parts have +25% Status Effect Damage
Transfuser - On kill, Guns with Maliwan-licensed parts spread their active Status Effect to up to 3 nearby targets.

Equipping a Maliwan Enhancement with either Synthesizer or Transfuser synergize well with this build since it gives Vex and Trouble additional Status Effect Damage.

Transfuser is great for Mob Clearing, while Synthesizer provides higher dps in general.

Best Firmware

Firmware Set Bonuses
GOOJFC Action Skill Cooldown Rate is increased by 10% Action Skill Damage is increased by 15% Action Skill Cooldown Rate is increased by an additional 20%
Risky Boots When Health is less than 35%, Damage Taken is reduced by 30% When Health is less than 35%, Movement Speed is increased by 35%

We recommend taking 3 pieces of GOOJFC to improve your Action Skill cooldown and damage, making it easier to command Trouble as needed.

Risky Boots are a great 2 piece set you can take for your other equipment, which should aid in your survivability, especially against strong bosses in higher difficulties.

Vex Leveling Build Best Specializations

Specialization Tree and Effect
Riddle You This Icon Riddle You This
Brute Icon Brute Tree

Whenever the Vault Hunter deals Gun Damage, gain a Stack of Riddle You This, increasing Gun Damage.
Stacks are lost if a new Stack has not been gained for a Duration.

Gun Damage: +1% per Stack
Maximum Stacks: 50
Duration: 6 seconds
In The Zone Icon In The Zone
Sharpshooter Icon Sharpshooter Tree

While Aiming, the Vault Hunter gains increased Gun Damage and Critical Hit Damage per second. Bonuses are lost after 2 seconds of not Aiming.

Gun Damage: +5% per Stack
Critical Hit Damage: +5% per Stack
Maximum Stacks: 5
Now With Caffeine Icon Now With Caffeine
Daredevil Icon Daredevil Tree

Reduce Action Skill Cooldown whenever a Repkit is activated.

Action Skill Cooldown Reduction: 25%
I Am A Gun Icon I Am A Gun
Daredevil Icon Daredevil Tree

Action Skill Damage now benefits from increases to Gun Damage.

Action Skill Damage: 50% of increases to Gun Damage.

We recommend taking the following Specializations, with priority on unlocking Now With Caffeine, and I Am A Gun to further amplify the usage of Trouble.

Both In The Zone and Riddle You This provide Vex with additional Gun damage, allowing her to deal more damage once Trouble Taunts the enemies, and amplify Trouble Further once I Am A Gun is unlocked.

List of All Specializations

Vex Leveling Guide

Use Action Skill as Often as Possible

Using Here Comes Trouble as often as possible allows you to capitalize on Trouble's Badass Form, which should be enough to take on most normal enemies.

This allows you to run around the battlefield and use your guns to focus on other enemies, making clearing areas faster and more efficient.

Look For Order Repkits

As you approach the later stages of the build, start looking for Repkits with Order Licensed Parts, since these give you 2 Charges of your Repkit.

This improves Vex' survivability, while also giving you two charges to proc your buffs from Infusion.

Complete Side Missions and Bounties

To farm EXP efficiently, accept Side Missions and Bounties whenever possible, instead of just aimlessly wandering the map.

Side Missions and Bounties reward you with EXP upon completion, and most of these require you to fight various enemies, allowing you to gain EXP from multiple sources per mission.

How to Level Up Fast

Vex Leveling Build Playstyle

Summon-Focused Damage Playstyle

With the Here Comes Trouble skill tree, your Phase Phamiliar summon Trouble serves as a key source of both damage and utility. Throughout the story, Trouble remains a dependable ally, helping you level quickly and cut down enemies regardless of your loot quality.

Borderlands 4 Related Guides

Borderlands 4 - Builds

Best Builds for Each Vault Hunter

All Character Builds

Character Build
Vex the Siren IconVex
Phase Familiar IconBest Leveling Build
Rafa the Exo-Soldier IconRafa
Amon the Forgeknight IconAmon
Harlowe the Gravitar IconHarlowe

Comment

2 Anonymous Anonymous 2 months

wwwwwaaaahhhhhh!!!!!!!

1 SkullReaper329 SkullReaper329 3 months

How come this build uses only SMG's and not AR's (Assault Rifles), or a mixture of the 2?? I love using a mixture of all the guns except the shotguns. I know shotguns are for up close

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