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Borderlands 4 Guide

How to Unlock The Legendary Oxidation Repkit

Repkits
Legendary Loot
By Lewis0n
Updated on Jul 31, 2026
Jul 31, 2026

Overview

Oxidation is a Vladof Repkit

Its special effect is Blood Iron - Reloads a percentage of ammo equal to the percentage of health healed on use.

How To Unlock

Unlock Location:

  • Progress through the (Murders and Acquisitions) DLC until reaching the Final Boss BETAMAXXX.

Farm Method:

  • Defeat BETAMAXXX to get a chance at the Oxidation.
  • After use the Encore Machine nearby to reset the fight.
  • Repeatedly defeat BETAMAXXX until the Oxidation drops.

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Table of Contents

1. Overview2. How To Unlock3. Comments

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