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Borderlands 4 Build

Stormbringer - UVH5 Viable Crucible Spam

presentationAmon
presentationCrucible
End Game
Updated on Nov 24, 2025
Nov 24, 2025

Build Overview

OH MY GOD IT FINALLY WORKS

This build is about spamming Crucible and your Forgeskill as much as possible for amazing melee damage. This is all built around maximizing your damage of Raging Inferno which was fixed in the 10/23 patch.

There will be a mix of Hour of the Hammer and Blade Tempest


This is the successor to my Wonderlands Stormbringer Build

Strengths And Weaknesses

  • Easy Mobbing
  • High Damage Bossing
  • Survivability
  • SO MUCH FUN
  • Gear specific
  • Weak against big armor bars
  • Vault boss melts are RNG

Skill Tree

Points Spent 0 / 49
LMB Allocate
RMB Unallocate
Crucible
5/5
5/5
1/5
3/5
1/1
5/5

Action Skill:

Crucible - melee action skill that can deal great damage, spammable, and tons of fun. Not the strongest thing in the world but it is viable

Hour of the Hammer - star of the show for mobbing. The AOE effect lets you hit multiple enemies and less likely to miss your target

Blade Tempest - the big bosser. The spam of blades makes you apply tons of Raging Inferno DoTs and then Detonate to do even more damage

Double Edge Forgeskill - we cannot reach a capstone currently so we are stuck with our basic option. This still does great damage for mobbing and a huge part of bossing. When detonating primed enemies you will have a huge explosion which can crit and apply its own Raging Inferno DoT for potentially millions of damage.

Green Tree:

Gathering Storm - elemental damage double dipping

Destruction Engine - mainly for detonation damage

Bellows - gun damage to go into I Am A Gun

Tempered Pyre, and Twin Tempers for proccing Fists of Stone

Raging Inferno - double dipping status effect that will be our single target damage (BUG: does not benefit from skill damage) This is a key skill

Red Tree:

Discombobulate - increased crit chance for Raging Inferno

Impetus - Increased movement speed for Bullet Train

Gut Punch - damage boost that double dips

Tritanium Knuckles - both bonuses benefit Crucible

The Best Defense - simply overshield

Forged In Steel - insanely helpful for when you use Protean Cell

Catastrophe - increased crit chance for Raging Inferno

Fists of Stone - allows us to spam our Forgeskill a crazy amount. This is a key skill

Electrical Fire - turn big Raging Inferno status effects to huge Shock status effects. Deals 50% of Raging Inferno. This is a key skill

Blue Tree:

The Thrill - amazing survivability skill

Equipment

Weapons
Repkits & Ordnance
Utilities

Guns:

You will want to hold any splash weapon to benefit from the gun splash damage bonus on your Enhancement. When holding a splash gun and having gun splash damage it will act as all damage dealt. Making it an excellent stat stick. I go with the Stellium which is a high DoT Maliwan Shotgun which is easy to use with the Primed Potency Enhancement. Solid to shoot with mobbing

Jakobs Pistol Vial Launcher Underbarrel - This damage boost is great for min maxing. You can shoot the vial at the enemy then swap to the splash gun.

Ordnance:

Slippy - deals good damage and procs Fists of Stone more often

Jakobs Grenade Crit Knife - now at 30%. This is good if you do not have a lot of crit chance.

Shield:

Protean Cell - Go to for bossing. The shock bonus element applies to status effects where most bonus elements do not do this. So you will get 40% shock damage based on your Raging Inferno and Electrical Fire DoTs. It is VERY NOTICEABLE. Some weaker bosses might not need this. You also become a lot less tanky since damage goes directly to your health unless you have overshield

Firewerks - Go to for mobbing. The projectiles kill enemies so you don't have to which means faster mobbing.

Class Mod:

Melee Crit Chance or Skill Crit Chance is VERY noticeable and helpful as a passive. Gives consistency for DoTs which I prefer over basic soup damage boosts.

Furnace - +5 into Raging Inferno and ideal passive is all you need for this. Go to for mobbing and bossing as long as you follow the right gear. Viking unfortunately is just not worth it as the loss of crit chance is noticeable.

Repkit:

Triple Bypass - able to activate Crucible more often w/Now With Caffeine.

Get with Damage Dealt or Elemental Damage for min maxing damage that double dips into Raging Inferno

Enhancement:

Anything goes for enhancement that matches with your gun of choice as long as it has the gun splash passive

If going with my recommended gun of choice the Stellium then get the Primed Potency Enhancement.

Firmware

Repkit & Ordnance
Repkit FirmwareAction Fist
Ordnance FirmwareAction Fist
Utilities
Class Mod FirmwareReel Big Fist
Shield FirmwareReel Big Fist
Enhancement FirmwareGod Killer

Must Have:

2/3 Action Fist - good damage boosts

2/3 Reel Big Fist - good damage boosts

3/3 in either of these are not worth it since Raging Inferno will probably steal the kill

Final Firmware Options:

Airstrike - splash radius is good for mobbing

God Killer - min max for bossing

GOOJFC - a little cooldown for Crucible

Specializations

Specialization 1Now With Caffeine
Specialization 2I Am A Gun
Specialization 3Bullet Train
Specialization 4A Honed Mind

Now With Caffeine - using w/ Triple Bypass you can easily spam your Crucible during mobbing. Also helpful during bossing with Blade Tempest

I Am A Gun - skill damage boosts Crucible

Bullet Train - gun damage to go into I Am A Gun

A Honed Mind - skill crit chance to proc Raging Inferno more often


Other Options instead of A Honed Mind:

Bear Arms - melee damage boosts Crucible

The Best Defense - damage boost that double dips

Gameplay

Mobbing

Spam Crucible. Use whatever element is best

Active your Forgeskill

Throw Slippy for Fists of Stone to activate Forgeskill more often

Use your Repkit to get back charges and repeat.

Bossing

Activate Forgeskill

Throw Ordnance at boss

Activate Blade Tempest for Raging Inferno DoTs. Use whatever element is best

Activate Forgeskill again for huge Detonation Damage.

Use Repkit for more charges and repeat

Changelog

December 24th 2025 - finally updated with crit knife being fixed

October 29th 2025 - added build video (existed for a bit but forgot to add lmao)

October 24th 2025 - Official Build Released. NO MORE RAGING INFERNO BUG!

Video Guide

Table of Contents

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