Borderlands 4 Amon Best Build Guide

Amon the Forgeknight in Borderlands 4 is built to be a tanky powerhouse. His massive frame, shield skills, and elemental combos make him one of the most versatile Vault Hunters in the game. Depending on whether you’re pushing through campaign missions, running solo, or coordinating with a squad, his playstyle shifts just enough to stay fresh.

You can spec Amon into three main builds: a Cryo-focused Vengeance tank for the campaign, a fiery Calamity melee brawler for solo play, and a Cybernetics hybrid setup for multiplayer. Each pulls different strengths from his trees while keeping him durable enough to survive the toughest fights.

Best Campaign Build for Amon (Vengeance Cryo Tank)

When running the story, you want Amon to soak damage and outlast bosses. The Vengeance skill tree makes him nearly unbreakable while boosting Cryo effects. Shield uptime and crowd control are your lifelines here.

Start by investing in Cryonic Thrum if you play with friends, since it taunts enemies and heals allies during Scourge. For solo runs, swap it with Blastchill to add explosive Cryo waves to your Forgewaves. Eternal Winter is another key augment later on, creating a massive free Forgewave that doesn’t drain Vengeance.

The capstone ability, Ring of Frostfire, turns Firewall into a dual-element zone. Inside it, enemies burn, while those outside freeze. Pair this with Maliwan shotguns that switch elements to maximize elemental cycling.

Key skills to prioritize:

Wrath of Nature: doubles Cryo effectiveness during action skills.
Ballistic Bulwark: grants Overshield on Ordnance hits.
The Thrill: regenerates health when tanking non-status damage.
Ancient Ways: boosts Cryo damage across the board.

Best Solo Build for Amon (Calamity Incendiary Bruiser)

Playing alone means Amon must be his own offense and defense. The Calamity build leans into Incendiary damage and melee combat with Onslaughter at its core. This skill lets him tear through packs of enemies before switching to heavy gunfire during cooldowns.

Pick Pyroclast as your main augment to extend Onslaughter’s uptime. Enemies killed within the Forgestorm will refresh its duration and boost its damage. Follow up with Fulminating Fist if you want stronger elemental procs, or Fellfrost if you prefer timing a Rocket Punch into Onslaughter for massive burst damage.

The ultimate, Hoarcleave, turns Molten Slam into a colossal Forgeaxe wave that freezes enemies, chaining Cryo detonations when they die. It’s brutal for solo survival, giving you breathing room to pick off stragglers.

Key skills to prioritize:

Metal Urge: reduces Onslaughter cooldown through gun damage.
Bloodlust: lifesteal and reload speed after action skill use.
Forged in Steel: temporary invulnerability after Forgeskills.
Into the Fray: more damage the closer you get to enemies.
Harbinger: stacks melee damage and shield capacity with kills.

Best Multiplayer Build for Amon (Cybernetics Hybrid DPS)

In co-op, Amon shines as both frontline and support. The Cybernetics tree mixes fire and ice, giving him crowd control and ranged utility while still letting him brawl. Crucible is your central action skill here, applying elemental debuffs and spawning Forgeaxes.

Take Endless War first, so enemies primed by Forgeskills take extra gun damage. Later, Searing Cold and Flame Axes make your thrown Forgeaxes apply Cryo or Incendiary depending on their type. Storm Surge is the late-game capstone, swapping Cryo for Shock on a wide AoE blast that’s perfect for melting shields and setting up detonations for your team.

Jakobs crit-based weapons pair perfectly with this build since many Cybernetics skills amplify crit damage and ricochets. Shotguns and rifles with fast reloads keep you aggressive while keeping Storm Surge primed.

Key skills to prioritize:

Executioner: boosts crit damage after melee hits.
Get the Lead Out: faster reloads, doubled after detonations.
Tempered Pyre: summons a Forgedrone Axe dealing Incendiary damage.
Twin Tempers: adds a Cryo Forgedrone alongside the fire one.
Lightning Rod: crits spawn Shock bolts for AoE damage.
Wrath of Nature: more Cryo power, doubled during Onslaughter.

Final Blurb

Amon the Forgeknight thrives in almost any setup, whether freezing waves of enemies, smashing bosses with a flaming axe, or supporting allies with hybrid elemental damage. His builds lean into durability first, but with the right augments and gear, he becomes a devastating mix of tank and executioner. Tweak your tree depending on whether you’re in campaign, solo, or co-op, and you’ll never feel underpowered.