Best Borderlands 4 Vex build

https://www.dexerto.com/gaming/best-borderlands-4-vex-build-3250193/

Cande Maldonado Sep 11, 2025 · 5 mins read
Best Borderlands 4 Vex build
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Borderlands 4’s Vex might look tricky with her elemental swaps and minion management, but she’s only as strong as you build her.

There are four different characters to choose from in Borderlands 4, each representing a different fighting style. Some thrive in straightforward melee, others in firepowe.

Vex thrives in versatility. Her Phase Covenant lets her adapt to any situation by changing her element on the fly, and her minions keep enemies busy while she picks her shots.

So, if you’ve sifted through Amon, Rafa, and Harlowe and decided on the Siren herself, you’re in the right place. Here’s the best build for Vex in Borderlands 4.

Best Vex build

The best build for Vex focuses on minions and elemental flexibility, which basically lets you swap damage types instantly and keep pressure on enemies with Trouble or phase clones.

  • Best skills: Leeching Attunement, Witchy Trigger Finger, Cursed Blade, Wither, Heirloom, Hexus Nexus, Trouble Bubble, Grim Reaper, Unsealed
  • Best Action Skill for solo: Phase Phamiliar
    Best Action Skill for co-op: Dead Ringer
  • Capstone: Unsealed (Phase Phamiliar) or Heirloom/Grim Reaper (Dead Ringer)
  • Weapon type: Elemental SMGs/ARs for status spam, Kinetic for lifesteal windows

Best skills to choose

Solo

Action Skill: Phase Phamiliar

Phase Phamiliar summons Trouble, your spectral panther, as a permanent companion. He tanks, taunts, and deals steady damage while you focus on swapping weapons and matching elements.

What makes this really good is Unsealed, which lets Trouble mark enemies for bonus damage and buff himself when kills happen. With taunts, singularities, and crit synergies, Trouble lets you play aggressively without worrying about being focused down.

To find the skill you want, type it into the filter under skill to uncover whether it’s a good one to invest in and how many points you should put into it.

Co-op

Action Skill: Dead Ringer

Dead Ringer stores three charges to summon Reaper melee taunts or Specter ranged clones. Reapers pull aggro while Specters pepper enemies from cover, making Vex a fantastic tank and debuffer in group play.

To find the skill you want, type it into the filter under skill to uncover whether it’s a good one to invest in and how many points you should put into it.

Best Capstone

The best Capstone for Vex depends on your chosen Action Skill:

  • Unsealed is the best for Phase Phamiliar builds, marking bosses for more damage while doubling Trouble’s kill buffs.
  • Heirloom is perfect for Dead Ringer Specter builds, letting your clone copy a legendary weapon for burst DPS.
  • Grim Reaper is the ideal Capstone in add-heavy encounters, chaining new Reapers off of kills.

Weapon type

Given Phase Covenant ties your melee and Action Skills to your gun element, the best weapon type for Vex is elemental SMGs and ARs with a high fire rate to stack statuses. Switch between Shock, Incendiary, Cryo, and Corrosive to break bars.

For sustain windows, swap to Kinetic to trigger Leeching Attunement lifesteal. Avoid long-range rifles like snipers, as Vex thrives at mid-range with her pets taking heat.

How to play Vex

Vex is a versatile Siren who works best with adaptable players.

  • In solo play, rely on Trouble to taunt and distract while you cycle elements for maximum damage. Use Unsealed to mark bosses and mow them down with elemental crits.
  • In co-op, rotate Dead Ringer charges to keep a Reaper tanking and a Specter debuffing. Stack Coven regen and Wither debuffs while teammates burn targets.
  • For Incarnate fans, swap augments like Witchy Trigger Finger to refill mags and stack gun buffs during Eldritch Blasts.

Stick close to the fight, let your pets control the field, and constantly swap weapons to ensure Phase Covenant is matching the right element.