The best Amon builds in Borderlands 4: Forgeknight guide

Borderlands 4 Amon builds: An upper-body shot of Amon gleefully holding two massive axes in either hand, one fire and the other ice.
(Image credit: Gearbox)

Built like a Viking, Borderlands 4's Amon is the biggest playable character the series has seen. As the Forgeknight, the best Amon builds use a variety of elemental weapons, from hammers, axes, and swords, to shields and even drones to get up in enemies' faces before pulverising them.

With arguably the most complex action skills and trait of all the Borderlands 4 characters (it's certainly more hands-on than Rafa's, for example), Amon could prove challenging to wrap your head around at first. Fear not, though, as I'll go over three of the best Amon builds at max level below, covering the skills, augments, and capstones to pick, alongside what gear works with them.

Best Amon builds in Borderlands 4

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Like the other Vault Hunters, Amon has three distinct skill trees to pick from:

  • Calamity: This tree has one goal in mind, and that's to become the iconic Doom Slayer. Run around with faster movement speed and rocket-punch enemies into dust. Obviously, there's a big focus on melee damage and action skill use in this tree, though there's also a lot of potential for hybrid builds using close-range weapons.
  • Vengeance: Amon's tanky, brawler playstyle couldn't be more apparent than here, using both a shield, damage-boosting barrier, and other heavy weapons to stay kicking and dish out the pain. This tree plays very well into ordnance-based builds, using heavy weapons for massive damage.
  • Cybernetics: Fully taking advantage of Amon's arsenal of Forge weapons, this tree is all about spamming action skills to deal heavy damage and control the battlefield. You can swap between different elemental Forge weapons, spawn Forgedrones for extra support, and use Forgeskills to detonate enemies for even more damage.

Amon's trait is Forgeskill: Amon gains a unique Forgeskill ability depending on his equipped action skill. These are activated by holding the action skill button, and are given additional properties with certain skills, augments, and capstones.

Now onto the best builds for Amon, beginning with his Calamity/Onslaughter setup. In the tables below, I've listed the skills, augments, and capstones in the order you'll want to unlock them, though remember that you can always respec if you'd like to tweak things while levelling.

Amon build: Doom Slayer

  • Primary skill tree: Calamity
  • Action skill: Onslaughter
  • Favoured element: Incendiary

Ever wanted to become the Doom Slayer in Borderlands? Then there's nothing closer than Amon's Calamity build, which lets you charge around with a flaming fist while you blast away with a gun in your other hand. The end goal is to stay close enough to hug your enemy while you weave punches with flaming shotgun shots, dishing out massive damage in short bursts without relying on Kill Skills. Because of this, the build works well against normal enemies and bosses, so long as you can reach them.

With how often you'll be in the thick of it, I recommend taking advantage of the new armour shield in Borderlands 4. Armour shields differ from the standard shields in that they constantly regenerate (even in combat) and come with a flat damage reduction. They're very much intended for aggressive melee playstyles, especially with many legendary versions coming with perks that buff melee, movement speed, and other effects on segment breaks.

This build is centred around Onslaughter's passive bonus incendiary damage with guns while it's active. Unsurprisingly, then, we've got What Burns Within to increase incendiary damage further, Tritanium Knuckles to boost melee and skill damage, and Gut Punch to apply weakness, which both reduces enemy damage while increasing your own just for punching them.

Since Onslaughter constantly restores your shields, I recommend picking the Battleborn perk from the Vengeance tree to further increase your damage based on your health, even doubling the bonus when you're at full health. The Harbinger and Impetus perks (from the Calamity tree) go a long way in ensuring your shields are stocked, too.

This build also deals a lot of status effect damage between Onslaughter, the Molten Slam Forgeskill, the Pyroclast augment's fire storm, your guns, and the weakness effect. Naturally, we've got a few perks to capitalise on this: Master the Storm amps up both status effect damage and duration, Bullet Storm boosts gun damage after applying a status, and Burning Ramparts raises your fire rate and status effect chance based on your shields. Harbinger and Impetus show their worth once again here, too.

The most important perk, though, is Into the Fray. This makes it so you take less damage and deal more damage based on your distance from the enemy. The closer you are, the better. It's a lot less dangerous getting in the enemies' face to punch and blast them with a shotgun once you've got this perk. Plus, punching also partially restores your ammo capacity.

Here's where you should spend your skill points:

Swipe to scroll horizontally

Skill Name

Point Investment

Description

Onslaughter (Action Skill)

NA

Amon overloads his Forgefist, gaining constant shield regeneration, bonus incendiary damage with guns, and increased movement speed.


Press action skill or melee to rocket punch, dashing to a target enemy, dealing incendiary melee damage in a short-ranged cone, and causing stagger. Bosses cannot be staggered, and badasses have only a chance to be staggered.

Molten Slam (Forgeskill)

NA

Slam a molten forgehammer into the ground, dealing incendiary melee damage to enemies in a large area.

What Burns Within

5/5

Amon gains increased incendiary damage.

Impetus

1/3

Kill Skill: Amon gains increased shield regeneration rate and movement speed for a duration.

Pyroclast (Augment)

NA

Whenever Onslaughter is activated, Amon fully restores his health and shield, and is surrounded by a Forgestorm that deals incendiary status effect damage to nearby enemies over time.


Kill Skill: Killing an enemy inside the Forgestorm restores Amon's action skill duration, and increases Forgestorm's damage.

Master the Storm

5/5

Increases Amon's status effect damage and duration.

Gut Punch

3/3

Melee damage and ordnance damage have a chance to apply weakness to enemies for a duration. Weakened enemies deal reduced damage and take more damage. Weakness is affected by status effect duration, and is itself considered a status effect.

Tritanium Knuckles

5/5

Increases Amon's melee and skill damage.

Forged in Steel

1/1

Amon becomes immune to all damage for a brief duration whenever he activates a Forgeskill.

Bullet Storm

5/5

Whenever Amon applies a status effect, he gains increased gun damage for a duration.

Metal Urge

5/5

Whenever Amon deals gun damage, he gains increased action skill cooldown rate for a duration.

Into the Fray

5/5

Amon gains increased damage dealt and damage reduction based on his distance from the enemy. The closer the enemy, the greater the bonus.

Burning Ramparts

5/5

Amon gains increased rate of fire and status effect chance the more full his shields are.

Maining Strike

1/3

Gun critical hits have a chance to apply weakness to enemies for a duration, causing them to deal reduced damage and take more damage. Weakness is affected by status effect duration, and is itself considered a status effect.

Rearm

1/3

Whenever Amon deals damage with a melee attack, his current gun has its ammo partially refilled.

Harbinger

2/5

Kill Skill: Amon gains increased melee damage and maximum shield capacity for a duration. This effect can stack.

Molten Roil (Capstone)

NA

Molten Slam gains increased radius and stores damage. Pyres erupt under up to three enemies after a delay, dealing additional incendiary melee damage based on damage stored by Molten Slam, distributed among the remaining targets.

Battleborn (Vengeance tree)

5/5

Amon gains increased gun damage the more full his health. This effect is doubled while Amon is at maximum health.

Amon build: Iceplosions

  • Primary skill tree: Vengeance
  • Action skill: Scourge
  • Favoured element: Cryo

The Vengeance skill tree really only has one clear build option: ordnance damage (bonus points for cryo), though that's not necessarily a bad thing, as it does it incredibly well. Primarily, this build focuses on increasing ordnance damage and status effects, which combine for some lethal burst damage in both single-target and AoE situations.

Unsurprisingly, the first thing you'll want to do is increase your cryo effectiveness and ordnance damage (which also improves Scourge's power) and cooldown. I recommend picking up a few points in Scorched Kairos, Wrath of Nature, and Ancient Ways. Likewise, Machinist, a Kill Skill to recharge your ordnance, comes in clutch to keep the ball rolling, and Tail of the Comet creates cryo hazards on ordnance hits.

Towards the end of the levelling process, you should also get a few skills from the Cybernetics tree, including Cacophony for bonus ordnance damage and Endless Bombardment for a chance to refund grenades on use, plus heavy ordnance ammo when damaging enemies. This goes a long way to helping sustain this ordnance-based playstyle.

However, you will eventually run out of ordnance, so perks like Icy Rage and Bellows to increase your gun damage are handy. Similarly, your action skill and Forgeskills are heavy hitters in this build since they inherently deal cryo ordnance damage. Plus, this build uses the Eternal Winter augment and Glacial Rapture capstone, effectively letting you use your action skill as three successive blasts (the last one also does bonus damage) and replacing Firewall with icy whips and hazards.

Here's where you should spend your skill points:

Swipe to scroll horizontally

Skill Name

Point Investment

Description

Scourge (Action Skill)

NA

Amon equips a Forgeshield that absorbs all frontal damage as Vengeance. Whenever the Vengeance metre is filled, Forgeshield provides damage reduction instead. Vengeance drains rapidly if it has not been gained recently.


Reactivate your action skill to launch a Forgewave, dealing cryo ordnance damage to enemies it passes through, consuming Vengeance to increase damage dealt.

Firewall (Forgeskill)

NA

Deploy a shield that absorbs enemy projectiles while granting friendly projectiles increased damage and velocity. Absorbed damage is converted into Vengeance stacks if Scourge is active. Enemies near the Firewall take incendiary status effect damage over time.

Wrath of Nature

4/5

Amon gains increased status effect application chance and cryo effectiveness. This effect is doubled when his action skill is active.

Scorched Kairos

2/5

Amon gains increased ordnance damage and magazine size.

Blastchill (Augment - Replace Later)

NA

Forgewaves now consume more Vengeance and explode on impact, dealing cryo ordnance damage in an area. The explosion radius is further increased if the Forgewave passes through Firewall.

Tail of the Comet

4/5

Whenever Amon deals ordnance damage, there is a chance to apply a cryo status effect that deals cryo damage over time for a duration. Tail of the Comet is affected by status effect application chance.

Machinist

3/3

Kill Skill: Amon restores a percentage of ordnance cooldown.

Ancient Ways

2/5

Amon deals increased cryo damage.

Icy Rage

5/5

Kill Skill: Killing an enemy with cryo damage will grant a stack of cryo affinity for a duration, which increases gun damage.

Eternal Winter (Augment - Replace Blastchill)

NA

Forgewaves now partially restore action skill and Firewall duration on damaging enemies, and can be activated three times in succession. The third activation launches a massive Forgewave that deals increased damage and does not consume Vengeance.

Winter's Kiss

2/5

Whenever Amon deals ordnance damage, he consumes a stack of cryo affinity for each nearby enemy to spawn an elemental shard, dealing cryo damage in an area.

Age of Ice

4/5

Amon deals increased damage to frozen enemies and bosses.

Glacial Rapture (Capstone)

NA

Firewall is now Glacial Rapture. Swing Forgewhips, dealing cryo ordnance damage over two hits to nearby enemies before slamming into the ground, creating a cryonic fissure that deals cryo ordnance damage and leaves cryo hazards for a duration.

Cast Iron (Cybernetics tree)

5/5

Amon gains increased Forgeskill cooldown rate and gun handling.

Gathering Storm (Cybernetics tree)

5/5

Kill Skill: Amon deals increased elemental damage for a duration.

Bellows (Cybernetics tree)

5/5

Whenever Amon activates his Forgeskill, he gains increased gun damage for a duration.

Cacophony (Cybernetics tree)

4/5

Amon gains increased ordnance damage and detonation radius.

Tempered Ice (Cybernetics tree)

1/5

Forgedrone Skill: Whenever Amon activates his ordnance, he spawns a Hammer Forgedrone that attacks nearby enemies for a duration, dealing cryo melee damage/

Endless Bombardment (Cybernetics tree)

3/5

Grenades have a chance to refund themselves on use.


Heavy ordnance has a chance to refund ammo on damaging enemies.

Amon build: Cyber Viking

  • Primary skill tree: Cybernetics
  • Action skill: Crucible
  • Favoured element: Incendiary

Amon's Cybernetics skill tree is the most action skill spammy setup of the bunch, seeing you lob massive axes (swords later on) and a twinned axe like a boomerang that'll prime and detonate enemies. You'll also create Forgedrones to lend a helping hand. Between all that, you'll have amped up gun damage and critical hit chance, so it's a build that can do it all.

On the ability front, you'll want to nab the Cast Iron and Destruction Engine perks, increasing Forgeskill cooldown and damage, respectively. Likewise, What Burns Within, Discombobulate, and Titanium Knuckles from the top of the Calamity skill tree all combine to increase the damage of your action skill. Since these don't require kills to trigger, like lots of similar skills across the four Vault Hunters, they're invaluable against tougher enemies and bosses, where it's typically harder to rack up Kill Skill stacks.

Grab a point in Tempered Pyre and Twin Vipers to spawn two Forgedrones for bonus passive damage, which'll all have their durations restored when you use a Forgeskill. While these drones won't deal heaps of damage by themselves, they can be boosted using the Escalation and Honed Point perk. The main reason for having these drones is that Honed Point also causes them to boost your action skill cooldown when they critically hit.

Last but not least is how this all contributes to boosting your gun damage. The most important skill here is Bellows, which increases weapon damage when you activate a Forgeskill. Then there's Executioner to increase critical hit damage, which is doubled for a duration after dealing melee damage—including your action skill and Forgeskill. Any increases to elemental damage will also apply to your guns, as well, so long as it's not a kinetic weapon

Here's where you should spend your skill points:

Swipe to scroll horizontally

Skill Name

Point Investment

Description

Crucible (Action Skill)

NA

Amon readies Forgeaxes that can be thrown and picked up off the ground to refund cooldown: Flame axe deals incendiary melee damage, while frost axe, deals cryo melee damage.


Enemies damaged by Forgeaxes are primed for a short duration, and will detonate when they die or are damaged by a Forgeskill, dealing damage to nearby enemies.

Double-Edge (Forgeskill)

NA

Throw a twinned forgeaxe, dealing cryo melee damage to enemies it passes through and returning to Amon, dealing incendiary melee damage on the way back.

Cast Iron

3/5

Amon gains increased Forgeskill cooldown rate and gun handling.

Gathering Storm

3/5

Kill Skill: Amon deals increased elemental damage for a duration.

Executioner

5/5

Amon gains increased critical hit damage. This effect is doubled for a duration after dealing melee damage.

Endless War (Augment - Replace later)

NA

Primed enemies take increased gun damage for each stack of prime. If Amon detonates a primed enemy, a new Forgeaxe is spawned that seeks out a nearby enemy.

Destruction Engine

5/5

Amon gains increased Forgeskill damage and detonation damage.

Tempered Pyre

1/5

Forgedrone Skill: Whenever Amon activates his Forgeskill, he spawns an Axe Forgedrone that attacks nearby enemies for a duration, dealing incendiary melee damage. Activating a Forgeskill while Tempered Pyre is active fully restores the duration of all active Forgedrones.

Twin Vipers

1/1

Tempered Pyre now spawns an additional Axe Forgedrone that deals cryo melee damage. Forgedrones from Tempered Pyre have reduced duration.

Vital Organs

5/5

Kill Skill: Amon gains critical hit chance with guns for a duration.

Bellows

5/5

Whenever Amon activates his Forgeskill, he gains increased gun damage for a duration.

Blast Furnace

5/5

Whenever Amon or his Forgedrones critically hit an enemy or cause a detonation, he gains increased damage dealt for a duration. Detonations grant multiple stacks.

Blade Tempest (Augment - Replace Endless War)

NA

Amon now readies Forgeswords with his action skill, choosing flame or shock, dealing incendiary melee damage or shock melee damage respectively. Whenever activated, consume all charges to launch a barrage.


Enemies damaged by Forgeswords are primed for detonation for a duration, and will detonate when they die or are damaged by a Forgeskill, dealing damage to the target, but none to nearby enemies.

Tempered Lightning

1/5

Forgedrone Skill: Whenever Amon activates his action skill, he spawns a Sword Forgedrone that attacks nearby enemies for a duration, dealing shock melee damage. Activating an action skill while Tempered Lightning is active will partially restore the duration of all active Forgedrones.

Lightning Rod

4/5

Amon's guns have a chance to spawn an elemental bolt on critical hits, dealing shock damage.

Escalation

1/5

Forgedrones gain increased attack speed and movement speed.

Honed Point

2/3

Forgedrones have a chance to critically hit. Whenever a Forgedrone critically hits, they partially restore Amon's action skill cooldown.

Storm Surge (Capstone)

NA

Double-Edge is now Storm Surge. Press and hold your action skill to throw a Twinned Forgeblade, dealing shock melee damage in an area upon impact. Storm Surge creates a Forgestorm on impact for a duration, dealing shock status effect damage over time.

What Burns Within (Calamity tree)

2/5

Amon gains increased incendiary damage.

Discombobulate (Calamity tree)

3/5

Amon gains melee critical hit chance.

Tritanium Knuckles (Calamity tree)

3/5

Increases Amon's melee and skill damage.

Borderlands 4 Shift codesBorderlands 4 charactersBorderlands 4 Harlowe buildsBorderlands 4 Rafa buildsBorderlands 4 Vex builds

Borderlands 4 Shift codes: The new key connection
Borderlands 4 characters: Meet your new Vault Hunters and find out who's strongest.
Borderlands 4 Harlowe builds: The amped-up Gravitar.
Borderlands 4 Rafa builds: The speed-demon Exo-Soldier.
Borderlands 4 Vex builds: The spooky Siren.

Rory Norris
Guides Writer

Rory has made the fatal error of playing way too many live service games at once, and somehow still finding time for everything in between. Sure, he’s an expert at Destiny 2, Call of Duty, and more, but at what cost? He’s even sunk 1,000 hours into The Elder Scrolls Online over the years. At least he put all those hours spent grinding challenges to good use over the years as a freelancer and guides editor. In his spare time, he’s also an avid video creator, often breaking down the environmental design of his favourite games. If you can’t track him down, he’s probably lost in a cave with a bunch of dwarves shouting “rock and stone” to no end.

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