Once Human

Corrosion Build

Once Human - Corrosion Build
The Corrosion Build in Once Human is one of the best builds in the game, updated for Season 2. See the Corrosion build, the best weapons, armor, mods, deviants, and cradle override for the Corrosion Build in this comprehensive guide!

Best Corrosion Build in Once Human

Corrosion Build Basic Info

Once Human - Corrosion Build Best Builds

Slot Item Mod
Primary Weapon ACS12 - Corrosion Shock Rampage
Secondary Weapon Recurve Crossbow Vulnerability Amplifier
Melee Stun Baton Shock Diffusion
Helmet Gas Mask Hood Deviation Expert
Face Lonewolf Mask First Electrocution
Gloves Lonewolf Gloves Crit Amplifier
Shoes Lonewolf Shoes Covered Advance
Top Bastille Jacket Rejuvenating
Bottoms Lonewolf Pants Deadshot
Notes ・For Cradle Overrides, equip Handgun Enhancement, Tactical Combo, Transient Impact, Status Enhancement, and First Round Blast.
・Consume Whimsical Drink to increase Psi Intensity, Bone-In Deviated Sausage for Bosses. Other consumables to consider: Assorted Canned Fruit, Shattered Bread, Stargazy Pie, Raspberry Shaved Ice.
・For Deviations, Lonewolf’s Whisper is the best doggo!

The Corrosion Build is all about unleashing a relentless barrage of Power Surge! This build thrives on the chaotic synergy of stacking Power Surge and crits, allowing players to deal devastating damage consistently. At its core is the ACS12 - Corrosion shotgun, which perfectly embodies the build's essence, delivering shock damage that electrifies the battlefield. It's about making Power Surge go brrr!

Best Weapons for Corrosion Build in Once Human

Best Weapons for Corrosion Build
Primary Secondary Melee

Primary Weapon: ACS12 - Corrosion

Once Human - ACS12 - Corrosion Best Builds

The ACS12 - Corrosion shotgun is the lifeblood of the Corrosion Build (it was literally named after it), turning every shot into a potential party with a 70% chance to trigger Power Surge! This weapon doesn’t just deal damage; it amps up your crit game with a 15% Crit Rate boost.

When Power Surge triggers, it gives you a sweet 15% Crit DMG boost for six seconds, stacking up to ten times. Add in the 50% Psi Intensity damage that won’t decay over distance, and you’ve got a recipe for shocking destruction.

ACS12 - Corrosion How to Get and Location

Recommended Attachments and Calibrations

Component Attachment
Muzzle Extended Break
Optic -
Tactical Tactical Laser Sight
Magazine Shotgun Drum Mag
Calibrations Assault Style/Elemental DMG

Here are the top attachments for your ACS12 - Corrosion to amp up your Corrosion build!

Secondary Weapon: Recurve Crossbow

Once Human - Recurve Crossbow Corrosion Best Builds
The Recurve Crossbow the perfect match for the Corrosion Build, setting your foes up for a brutal finish! Nail those weak spots to inflict The Bull's Eye, which highlights the target and boosts your crit rate by 15% for 10 seconds. As if that wasn’t enough, marked enemies also take an extra 8% damage! It’s the perfect way to soften them up before unleashing your corrosion chaos!

Recurve Crossbow: How to Get and Location

Melee: Stun Baton

Once Human - Stun Baton

You'll want to get Stun Baton for the Corrosion Build. Here’s why: with a whopping 80% chance to inflict Power Surge with every light strike, you’re constantly ramping up that power. Once your target is electrified with Power Surge, landing a heavy strike doesn’t just pack a punch; it unleashes an extra wave of Shock damage to nearby enemies.

Stun Baton How to Get and Location

Best Armor for Corrosion Build in Once Human

Best Armor for Corrosion Build
Helmet Mask, Gloves, Shoes, and Bottoms Top

Gas Mask Hood for Helmet

Once Human - Gas Mask Hood
The Gas Mask Hood is a must-have for any Corrosion Build and Power Surge aficionado, cranking up your Crit Rate by 35% for 3 seconds right after you unleash that Power Surge! This means you can rain down critical hits like confetti at a party, stacking damage and making enemies wish they hadn’t crossed your path.

Lonewolf Set for Mask, Gloves, Shoes, and Bottoms

Once Human - Lonewolf Jacket
Equipping four pieces of the Lonewolf Set is like throwing a power-up party for your Corrosion Build! With a 10% increase in magazine capacity, you can keep firing without constantly reloading, allowing for more opportunities to trigger that sweet Power Surge.

The 5% boost to Crit Rate and the ability to stack Lone Shadow make your critical hits even deadlier. Each crit not only ramps up your Crit DMG by 6% but also increases your Crit Rate after a kill.

Bastille Jacket for Top

Once Human - Bastille Jacket
Grabbing just 1 piece from the Bastille Set is great for the Corrosion build because it gives you a solid +10% Weapon DMG boost as long as your HP stays above 70%. It's a simple but effective damage boost to stack on top of the Power Surge and crit bonuses.

Best Mods for Corrosion Build in Once Human

Best Mods for Corrosion
Best Weapon Mods Best Armor Mods

Best Weapon Mods

Weapon Mods for Corrosion Build
Primary Secondary Melee

Shock Rampage for Primary Weapon

Mod Effect Description
Shock Rampage Dealing Power Surge DMG grants +5% Power Surge Trigger Chance for 5s, based on the weapon's Trigger Chance. Can stack up to 4 times.

Shock Rampage is key for the ACS12 - Corrosion because it boosts your Power Surge trigger chance every time you deal Power Surge damage. With up to 4 stacks, you’re increasing the odds of Power Surge activating, allowing for more consistent procs of Power Surge damage and crits. Essentially, it fuels the build’s core loop—more Power Surges lead to more crits, which in turn amplifies your damage output.

All Mods List and Guide

Vulnerability Amplifier for Secondary Weapon

Mod Effect Description
Vulnerability Amplifier - Bull's Eye Increases The Bull's Eye effect by adding Vulnerability +8% to the target.

The Vulnerability Amplifier mod is always the perfect chocie for the Recurve Crossbow because it amplifies the effectiveness of The Bull's Eye by adding +8% Vulnerability to marked targets. This makes enemies take more damage, and since the Recurve Crossbow is all about hitting weak spots and stacking crits, the extra vulnerability ensures you’ll hit even harder when you follow up with your Power Surge weapons.

Shock Diffusion for Melee Weapon

Mod Effect Description
Shock Diffusion When triggering Power Surge, apply the Power Surge status to 1 enemy within 5m of the target (prioritizes enemies not affected by Power Surge).

The Shock Diffusion mod is a blast for the Stun Baton! When you trigger Power Surge, it zaps a nearby enemy with the same status, spreading the shockwave like a party favor. This means your heavy strikes will hit harder as you electrify more foes, turning each swing into a shocking good time!

Best Armor Mods

Armor Mods for Corrosion Build
Helmet Face Gloves
Shoes Top Bottoms

Deviation Expert for Helmet

Mod Effect Description
Deviation Expert - Talents Range -25%, Fire Rate +10%, Status DMG +20%.

With Deviation Expert, you get a 20% boost to Status DMG, making your hits land even harder. Plus, the 10% increase in fire rate means you can unleash damage faster, keeping the pressure on enemies. While the range reduction isn’t ideal, the offensive boosts make the mod worth it!

First Electrocution for Face

Mod Effect Description
First Electrocution - Talents Power Surge causes 30% more ultimate damage to enemies not in the Shock state.

Boosting ultimate damage by 30% against enemies not in the Shock state is like throwing a surprise party for your foes!

Crit Amplifier for Gloves

Mod Effect Description
Crit Amplifier - Talents Crit Rate +10%, Crit DMG +15%.

The Crit Amplifier cranks up your crit game with a zesty 10% boost to Crit Rate and a spicy 15% increase in Crit DMG! It’s a perfect fit for this build’s crit-centric style

Covered Advance for Shoes

Mod Effect Description
Covered Advance - Talents Taking no DMG within 4s grants +20% Melee, Weapon, and Status DMG for 30s. The effect resets when the duration ends.

Taking no damage for 4 seconds nets you a hefty 20% damage boost for 30 seconds, letting you unleash a flurry of hurt while staying in the fight! What's not to like?

Rejuvenating for Top

Mod Effect Description
Rejuvenating - Talents When HP is above 60%, a kill recovers 15% lost HP.

Rejuvenating perfectly pairs with Covered Advance—take no damage to stack that sweet damage boost, then use those kills to recover health and keep the rampage going!

Deadshot for Bottoms

Mod Effect Description
Deadshot Each Crit Hit by non-melee weapons grants +5% Crit DMG, up to 45%. The effect is removed upon the next reload.

Deadshot is a slam dunk for the Corrosion build because it boosts your Crit DMG with every Crit Hit, stacking up to a whopping 45%! This means your corrosive blasts hit even harder, melting enemies faster—just the way we like it!

Best Deviation for Corrosion Build in Once Human

Lonewolf's Whisper

Once Human - Lonewolf
For this build, Lonewolf’s Whisper is your best friend with a knack for mayhem! This cunning companion doesn’t just bark—it draws enemy fire and sends them into a frenzy while dishing out substantial damage. Every time Lonewolf’s Whisper takes down a target, it spawns a clone to keep the chaos rolling. With this furry friend by your side, your foes won't know what hit them!

How to Get Lonewolf's Whisper

Best Cradle Overrides for Corrosion Build in Once Human

Cradle Overrides for Corrosion Build
Handgun Enhancement Tactical Combo Transient Impact
Status Enhancement First Round Blast Lone Walker

Handgun Enhancement

Once Human - Cradle Override Handgun Enhancement
It’s a no-brainer! Handgun Enhancement cranks up your ACS12 - Corrosion’s damage by 20% and reloads ammo on kills, keeping the firepower flowing and the action rolling!

Cradle Override Guide

Tactical Combo

Tactical Combo gives you a sweet 25% Weapon DMG boost for 4 seconds after switching weapons or reloading! Perfect for softening up foes with your ranged gear before swooping in for a melee smackdown

Transient Impact

Another no-brainer! Desptie the nerf, Transient Impact boosts your Power Surge damage by 25% for 3 seconds after activation, turning your shockwaves into true shock-and-awe moments!

Status Enhancement

Status Enhancement cranks up your Status Damage by 25% for 3 seconds after hitting a weak spot. Since Power Surge relies on status damage, this override makes it even more shocking!

First Round Blast

After reloading, First Round Blast grants a 25% instant damage boost (Power Surge or Unstable Bomber) for 4 seconds. This synergizes with the build by significantly enhancing the burst damage potential right after reloading.

Lone Walker

Lone Walker is best friend if you're flying solo! It speeds up medicine use by 35%, boosts damage against monsters when your HP dips below 30%, and ramps up your overall monster damage by 20%.

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