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Borderlands 4 Build

Red Tree Leveling

Amon

Onslaughter

Leveling

By AncientRune

Updated on Sep 12, 2025

Sep 12, 2025

Build Overview

DISCLAIMER: This is all theoretical without any experience in the game. This is focused on using all things in a playthrough. If you find a gun or an ordnance or action skill that you really like then you can adjust things to focus more on that.

This is focused all around using the Red Tree w/ Onslaughter and it's action skill augments and Capstones. My go to will be Force of Nature for priming enemies and Stormcutter for the AS cooldown & duration as well as Ordnance cooldown. But this is just about using and messing with every action skill.

Skill Tree

Points Spent 0 / 49

LMB Allocate

RMB Unallocate

2/3

5/5

3/3

1/1

4/5

5/5

1/5

3/3

1/3

2/3

5/5

2/3

3/3

1/3

5/5

1/1

Flexible Skill points are Impetus What Burns Within Bloodlust and Rearm

Choose between Momentum and Bullet Storm - I go Momentum to get Onslaughter back faster which will then give buffs to my guns anyways. Bullet Storm also looks to have low % per point.

Only 1 point in Rimebreak is for the freezing effect

Forged In Steel might not be worth it until you can get Fists of Stone to where you can probably spam your Forgeskill. It can still work well as an "oh no" button where you are getting low on health. I don't like invincibility skills as it can be a noob trap but it's right there so why not.