How to Get Undead Eye Class Mod in Borderlands 4

How to Get the Undead Eye Class Mod in Borderlands 4

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Introduction

If you’re a Vex main in Borderlands 4, you already know how powerful sniper builds can be. Precision shots, critical hit chains, and fast takedowns define her playstyle. But there’s one legendary class mod that takes this approach to the next level: the Undead Eye.

This mod doesn’t just boost damage—it adds unique synergies that reward sniper rifle kills and critical hits. When equipped, Vex can sustain herself in battle and amplify her DPS, making her one of the deadliest Vault Hunters for endgame content.

But here’s the catch: the Undead Eye class mod isn’t easy to get. It drops only from a specific boss, after certain story requirements, and even then, it’s not guaranteed. If you want to unlock its potential, you’ll need patience, farming skills, and the right strategy.

This guide will cover:

  • What the Undead Eye does and why it’s important
  • Prerequisites before you can farm it
  • Exact boss and location details
  • Step-by-step walkthrough of the farming process
  • Best gear and strategies to improve drop chances
  • Why the mod is worth farming (and its drawbacks)
  • FAQs to clear up common confusions

Let’s dive in.

What is the Undead Eye Class Mod?

The Undead Eye is a legendary class mod designed exclusively for Vex, the Siren class in Borderlands 4.

Effects When Equipped

  • Sniper Rifle Kill Bonus: Killing an enemy with a sniper rifle automatically triggers Blood Shot.
  • Critical Hit Bonus: Critical hits with a sniper rifle have a 33% chance to trigger Blood Shot again.

Why It’s Strong

  • Grants extra damage output from chained crits.
  • Provides survivability since Blood Shot lifesteals or restores resources depending on build.
  • Perfectly synergizes with sniper-heavy skill trees and high-crit builds.

For players who prefer aggressive, long-range gameplay, this mod transforms Vex into a nearly unstoppable assassin.

Prerequisites: What You Must Unlock First

You can’t simply fast travel and expect to farm the Undead Eye immediately. There are a few story milestones to clear first:

  1. Finish the main story mission “His Vile Sanctum.”
    • This unlocks access to the boss arena where the Undead Eye drops.
  2. Unlock Terminus Range region.
    • This area becomes available after progressing far enough in the campaign.
  3. Gain access to the Umbral Foundry sub-area.
    • The boss is located here, so it must be unlocked.
  4. Unlock the Nightcap Safehouse fast travel point.
    • This is the nearest safehouse and makes repeated farming faster.

👉 Without completing these, you can’t reach the Vile Lictor, the boss that drops the Undead Eye.

Where to Farm Undead Eye – Boss & Location

  • Boss: Vile Lictor
  • Location: Umbral Foundry, within the Windspear area of Terminus Range
  • Nearest Fast Travel: Nightcap Safehouse

The Vile Lictor becomes available immediately after completing “His Vile Sanctum.”

👉 Important: The Undead Eye is part of the boss’s loot pool, meaning it’s not guaranteed. Expect multiple runs before it drops.

Step-by-Step Guide to Get the Undead Eye

  1. Finish the “His Vile Sanctum” story mission.
    • Progress naturally through the campaign until it’s complete.
  2. Travel to Terminus Range → Windspear → Umbral Foundry.
    • Use fast travel to Nightcap Safehouse for efficiency.
  3. Prepare your build before the fight.
    • Recommended: sniper rifles with high base damage and crit multipliers.
    • Equip survivability gear like strong shields or health regen relics.
    • Boost critical hit chance whenever possible.
  4. Fight the Vile Lictor.
    • Learn its attack patterns to minimize deaths.
    • Clear mobs around the arena before focusing on the boss.
  5. Check loot after the kill.
    • If the Undead Eye doesn’t drop, respawn the boss.
    • Respawning can be done via stations or features like Moxxi’s Big Encore.
  6. Repeat the process.
    • Farming legendary gear takes patience. Some players get it in a few tries, others may need dozens of runs.

Farming Tips to Improve Efficiency

While the drop rate can’t be manipulated directly, you can maximize farming speed and survivability.

1. Optimize Your Gear

  • Use sniper rifles with high critical multipliers.
  • Consider elemental sniper rifles—shock or corrosive may exploit Vile Lictor’s weaknesses.
  • Equip shields with regeneration or capacity boosts.

2. Focus on Boss Weaknesses

  • Study the Vile Lictor’s phases and elemental resistances.
  • Avoid wasting ammo on resistant phases.

3. Control the Battlefield

  • Clear minions before targeting the boss.
  • Use grenades or splash damage weapons to quickly remove adds.

4. Speed Up Runs

  • Memorize the route to the boss.
  • Practice dodging its hardest attacks to reduce downtime.

5. Don’t Burn Out

  • Farming is RNG-based. Take breaks if it feels repetitive.

Why the Undead Eye is Worth Farming

Even though the grind can be long, the reward is more than worth it.

Benefits

  • Synergy with Vex’s Sniper Builds: If you play long-range, this is the best-in-slot mod.
  • Endgame Viability: Makes bosses, mobs, and raids easier by boosting crit damage and sustain.
  • Build Versatility: Works across multiple sniper loadouts—crit-focused, sustain-heavy, or hybrid.
  • Prestige Item: Legendary mods carry status in the Borderlands community.

Example Build with Undead Eye

  • Weapon Core: High-damage sniper (e.g., Krakatoa variant or equivalents).
  • Class Mod: Undead Eye (boosts crit synergy).
  • Shield: Regenerative or adaptive shield.
  • Grenade Mod: Elemental grenades for add clear.
  • Relic: Crit chance/damage boosting relic.

With this setup, Vex becomes a crit-chaining machine.

Drawbacks & Considerations

  • Low Drop Rate: Farming may take hours or days.
  • Bad Rolls: Even when it drops, stats may not perfectly match your build.
  • Playstyle Dependency: If you move away from sniper play, its value drops sharply.
  • Co-Op Farming: Loot-sharing may slow your personal drop chances.

Advanced Farming Strategies

  • Co-op Farming: Bring friends; split loot pools and share drops.
  • Luck Gear: Some relics increase rare drop chances slightly.
  • Farm at Max Level: Drops scale—farm at high level for best rolls.
  • Event Boosts: Watch for loot-boosting events from Gearbox; rates may temporarily increase.

Frequently Asked Questions (FAQs)

Q1. Can I get the Undead Eye from any boss?
No, it only drops from the Vile Lictor in Umbral Foundry.

Q2. Is the drop guaranteed after the first kill?
No, it’s RNG-based. Some players may need dozens of runs.

Q3. Can I trade the Undead Eye with friends?
Yes, in co-op you can trade gear if your teammate gets the drop.

Q4. What’s the best level to farm it?
Farm at higher levels (endgame) to ensure it drops with max stats.

Q5. Is the Undead Eye good for non-sniper builds?
Not really—it’s sniper-focused. Other builds won’t fully benefit.

Conclusion

The Undead Eye class mod is one of the best legendary mods for Vex players in Borderlands 4. While farming it can feel like a grind, the payoff is massive if you love sniper builds. With boosted crits, automatic Blood Shot procs, and sustain, it elevates your gameplay in both solo and co-op modes.

To get it, complete “His Vile Sanctum”, unlock Umbral Foundry, defeat the Vile Lictor, and repeat until it drops. Patience is key—legendary loot never comes easy.

If you’re committed to Vex and want to dominate with sniper rifles, the Undead Eye is a must-have mod. Equip it, fine-tune your build, and watch your crits melt even the toughest bosses.

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