Borderlands 4 Wiki

Vex · Siren

Best Vex Build

Phase clone Siren setup for boss DPS and elemental clear. Answers best Vex build queries for mid-to-late Kairos.

Playstyle

Mark elites, drop Phase Clone, then empty Hot Slugger or Rainbow Vomit into the marked target while the clone soaks aggro.

Skill path

  • Spectre tree to Dead Ringer
  • Incarnate mid-tier elemental amp nodes
  • Phase Leech capstone for ammo on kill

Recommended weapons

Gear

  • Order class mod with clone duration
  • Maliwan shield with elemental resistance
  • Repkit with cooldown on action skill

Alternatives

  • Crit Jakobs pistol swap for Timekeeper
  • Splash Torgue AR for vault trash packs

Farm notes

Farm Hot Slugger from Bloomreaper routes; Triple Bypass often appears in Order bunker world drops.

Last verified Sep 25, 2026

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