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Borderlands 4 Build

(LVL 70) HORBA 7.0 - Heavy Ordnance Amon - TUVH7 M20

presentationAmon
presentationScourge
End Game
Verified
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Updated on Sep 27, 2026
Sep 27, 2026

Build Overview

Heavy Ordnance Ricochet Bananza Amon

Also known as HORBA! This a TRUE UVH7 Amon build that has been updated ever since pre launch adjusting for updates. This is the fastest clearing amon build that easily platinums takedowns.

Focuses on Heavy Weapon Ordnance dealing high base damage combined with Tail of the Comet and Blackout for high single target while having infinite ammo from Primal Surge

Heavy Weapon Ordnance benefits from both Ordnance and Gun damage as well as benefits from ammo regen and which allows up to keep up our ordnance infinitely. This means we don't have to go about worrying about Ordnance cooldown.

IMPORTANT INFO TO KNOW ABOUT DOTS:

Status effects each have a cap of 20 dots at a time. That means you can have 20 shock dots and 20 cryo dots. When you hit that 21st dot it replaces your 1st dot which is usually your strongest


Thank you to Lorandb, Sinfector, Girthquake and Steveo from The Soup Kitchen for their help in making this build the best it can possibly be

Strengths And Weaknesses

  • Easy Platinums
  • Amazing Bossing
  • Fastest Amon Mobbing
  • Great Survivability
  • Somewhat Gear Specific
  • FFYL relies on meta guns

Skill Tree

Points Spent 0 / 69
LMB Allocate
RMB Unallocate
Crucible

ACTION SKILL

Main/Bossing:

Scourge - used for the survivability. The less often our shield is being touched the better as our Shields need to be full

Cryonic Thrum - our preferred augment for the cryo bonus element for extra damage. As well as a little bit of healing.

We keep Firewall as our augment as it helps boost our Heavy Ordnance damage. This is a PURE MULT. Firewall is the main reason for using Scourge for bossing.

Aggressive Playstyle/Mobbing:

Onslaughter - bonus element applies to Heavy Ordnance, Shield Regen for Shields, and movement speed for mobbing to get from enemy to enemy faster.

Pyroclast - used for the fully restore shield and health on activation for better survivability. You will almost never have enemies inside the forgestorm as you will down yourself from your ordnance's splash.

Forgeskill is not used at all with this action skill as it's just not helpful.

Easy Ordnance Cooldown:

Crucible - pair this with Tripwire for easy ordnance cooldown if you end up using all your ammo.

We do not reach an augment nor does our Forgeskill do anything for us so you can just ignore that.

SKILL TREE

BLUE TREE:

Wrath of Nature - Increased status effect chance for Tail of the Comet and Primal Surge

Tail of the Comet - Double dipping Status Effect based on Ordnance damage impact. Used for single target and the big damage dealer. This is a key skill

Scorched Kairos - mag size to help reduce risk of running out of heavy ammo

The Thrill - extra survivability for intense mobbing activites

Icy Rage - increase gun damage on cryo gun and status effect kills

Primal Surge - keep up Heavy Ordnance Ammo and Shields. We only need a few points to keep up ammo and shields This is a key skill

Blackout - Double dipping Status Effect based on Ordnance damage impact. This is a key skill

Burning Rage - when paired with Elementalist this can be good reload speed if using a tediore for FFYL damage. Otherwise it doesn't really matter

Ballistic Bulwark - easy overshield

Disco Infernus - gives a lot more fire rate which is very noticeable especially with the Heimdahl. Kept up using Electrical Fire

RED TREE:

Impetus - movespeed helps get from point A to B faster

What Burns Within - boosts Onslaughter bonus element and any ordnance that is fire element

Gut Punch - damage boost that double dips into Tail of the Comet & Blackout

Wield the Storm - status damage applies but the duration doesn't (for TOTC and Blackout specifically)

Bullet Storm - gun damage for Heavy Ordnance

Forged In Steel - not focused on but can be used in bossing or if you get stuck somewhere where this might help

Catastrophe - mainly for the crit chance since it's easy to keep up. Blackout will give those stacks.

Crackling Aegis - extra damage boost

Dragon's Breath - this is just so your first projectile is fire so you have a chance of applying a fire dot faster before Electrical Fire just does it all

Electrical Fire - this is not used for damage but instead for keeping up Disco Infernus without doing some funky tech. This will keep up on it's own.

Flexible skill points:

The Thrill - can use 0-3 points based on how much survivability you need

Primal Surge - never really need 5 points I just use it as a safety net

Impetus - alternative is a lil soup so this is nice QoL but can other things

Berserk & There Is Only Red - can be used for Ordonite/Vile crystals with non Draupner weapons but also probably not going to be on True Mode and exclusive to mobbing content with those enemies

Equipment

Weapons
Repkit & Ordnance
Utilities

Ordnance:

Draupner - go to for bossing and mobbing (as long as you know the spawns well) just a disgusting gun. Also benefits from Active Fire on every shot because it recharges on every shot.

Heimdahl - insanely good for mobbing. Can beat Disc Jockey especially in highest difficulty of the takedown. It has problems dealing with Vile Crystals and Ordonite

Disc Jockey - great mobbing gun if Draupner and Heimdahl aren't available

Maliwan Heavy Weapon - MIRV and Two Shot parts for Hailspike. Insanely good for mobbing and bossing

Bottled Lightning - 3 mag for optimal mobbing.

Torgue Heavy Weapon - Triple Barrel and Shrapnel Rockets parts for Honey Bunches for optimal bossing. Do not charge to shoot. Only shoot once

Torgue Heavy Weapon - Airburst and Shrapnel Rockets parts for Tonguewag. This is slightly weaker than Honey Bunches but still works well.

Sprezzatura - used specifically for Bloomreaper Crystals which is explained in Gameplay. When paired w/ High Caliber it can be really good for bossing on certain enemies

Jetsetter - really good for bossing

Atling Gun

Vladof Heavy Weapon - Explosive Rounds and Two Shot parts for Ootka

Torgue Heavy Weapon - Two Shot and Fire Rate parts for Rocket Socket

Guns:

Tempered Essence - great for getting kills when in FFYL or just out of ordnance. Could be paired well with Machinist if you don't want to go Crucible + Tripwire method

Ripper Sniper - for the Target Marker underbarrel to shoot for damage boost that will go into double dips

Tediore AR - with buff drone for the damage and fire rate boosts. healing and movement is also nice. Can use a Laser Disker for it to also pair well in FFYL

Use any good gun for Fight For Your Life

Laser Disker - w/ Banger enhancement is solid damage

Maliwan Shotgun Stellium - w/ Primed Potency enhancement

Class Mod:

Ideal passives to look out for: Ordnance Crit Chance, Gun Crit Chance, Status Effect Chance, Damage Dealt, Elemental Damage, Cryo Damage, Shock Damage, Status Damage, Gun Damage, Ordnance Damage

Amon Class Mod Grenadier - gives points into Blackout for even stronger dot against shielded enemies and crit chance just means even more Blackout so it's just stronger and more often

Amon Class Mod Icebringer - gives points into Tail of the Comet for an even stronger DoT. 10/5 is insane.

Elementalist - w/ points into Thunderous Rage for TONS of damage boosts that can go into our double dips. The movement speed is also really nice. This is amazing for the Takedown or any other mobbing content. This can beat the other class mods with all skills up.

Amon Class Mod Cyborg - Gives points in Endless Bombardment which helps w/ ammo upkeep in mobbing but has a hidden fire rate boost which leads to more DPS. Bonus points if you get Ballistic Bulwark as well

Lamplighter - works really well when paired with Onslaughter. Get points in Eternal or Blast Furnace

Shield:

Watts 4 Dinner - rolls with 150% amp roll for maximum damage. can also roll Siphon w/ 100% amp. Also gives shock bonus element

Guardian Angel - rolls w/ 150% amp but w/ A LOT faster recharge

Protean Cell - the bonus element applies to our status effects which is not normal for bonus elements. This makes it INSANELY STRONG for bossing. But this makes you VERY FRAGILE so for bosses that hit you a lot this is not ideal. Can also be used in mobbing because of Primal Surge.

Super Soldier no longer works w/ Heavy Ordnance :(

Repkit:

Ideal Rolls: Get the roll with Action Skill Cooldown Rate for better Action Skill cycling. Or Amp for more damage. Can also go elemental or damage dealt. Movement Speed is good for the takedown

Kill Spring - go to for mobbing. The healing means you don't have to interrupt your Heavy Ordnance for using Repkit. This also gives Overshield which makes it even better

Triple Bypass - the 3 charges and regain are perfect for Now With Caffeine.

Order Repkit - for 2 passives. Amp is a must have then either Elemental or Damage Dealt

Enhancement:

Any enhancement works. Something that helps the guns you use is good. But mainly just go for good passives. Gun damage is a MULT (only additive with High Caliber and Active Fire gun damage in this build). Other damage bonuses are Gun splash damage, Gun splash radius, Gun equip speed, Gun crit damage, Gun Status Damage, Gun Accuracy, Gun Fire Rate

Firmware

Repkit & Ordnance
Repkit FirmwareSkillcraft
Ordnance FirmwareHigh Caliber
Utilities
Class Mod FirmwareHigh Caliber
Shield FirmwareSkillcraft
Enhancement FirmwareSkillcraft

2/3 or 3/3 High Caliber - Gun damage is a MULT (additive with enhancement gun damage). This makes this firmware a MUST HAVE Only go 3/3 if using Hailspike as it causes additional projectiles and MIRVs.

The rest of these choices are just in place of whats open after equipping High Caliber

3/3 Skillcraft - gives skill damage and skill crit chance. Applies to Tail of the Comet but not Blackout because of bugs

3/3 Active Fire - works on every shot w/ Draupner

1/3 God Killer - applies to bosses which double dips

2/3 Gadget Ahoy - Increased ordnance damage and some cooldown (just in case)

1/3 or 2/3 Airstrike - Splash radius is nice for hitting more enemies and splash damage applies to impact of Heavy Ordnance. Only 10% damage


Get Throwin damage doesn't apply to Heavy Ordnance. Only Tediore Chucks and Grenades

Specialization

Specialization 1Tripwire
Specialization 2Riddle You This
Specialization 3Fragmentation Payload
Specialization 4Contamination

Now With Caffeine - must have for cycling Scourge and Onslaughter (w/ Triple Bypass)

Tripwire - used with Crucible for easy cooldown. Can replace with Now With Caffeine

Fragmentation Payload - Addition 5% additional crit chance along with our Blackout skill as well as crit damage which is better than it says

Riddle You This - easy gun damage to keep up

Contamination - more status chance for Tail of the Comet

Full Spectrum Arsenal - replace w/ Now With Caffeine or Tripwire for bossing

The Best Defense - the damage boost will double dip Tail of the Comet and Blackout

Gameplay

Mobbing:

Pretty simple. Activate Onslaughter (if applicable) for movement speed and bonus element.

Get shooting with your Heavy Ordnance

Pay attention to your ammo

Use your Repkit to get back your Action Skill if using Now With Caffeine and Triple Bypass

If you run out of ammo and are using Crucible w/ Tripwire then spam that

Bossing:

If using Scourge then use that and Ring of Frostfire

If using Protean Cell then slam to activate

Spam shoot bossing ordnance

Unequip ordnance and shoot Devourer

Repeat shooting ordnance and Devourer until boss is dead

Notes

When you do any action - grapple, activate action skill, activate forge skill, mantle - will put away your Heavy Ordnance away and put it on cooldown UNLESS you are at maximum ammo. So make sure your ammo is at max before doing anything.

SAVE FILE

Changelog

September 25th 2026 - OFFICIAL LEVEL 70 UPDATE

August 26th 2026 - lvl 70 update

June 30th 2026 - Takedown update. New skill tree changes and new go to bossing gun

June 24th 2026 - UVH7 Update

April 12th 2026 - Official level 60 update after testing

March 23rd 2026 - lvl 60 update

December 29th 2025 - UVH6 Update. Lots of changes. Mostly skill tree and ordnance options but reread everything

October 24th 2025 - Updated for Blackout fix and Protean Cell which makes this 1 shot enemies and melt bosses in a few seconds.

October 7th 2025 - added Crucible use case and added Tripwire as an option to go with the action skill.

October 4th 2025 - updated for past few updates & new video attached

  • added amp shield (its stronk)
  • added more formula over cooldown (AS overrated anyways)
  • removed bullet hail (it sucks. We are not HORBA. just HOBA)

September 21st 2025 - Release


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