Skills | Borderlands 4 Wiki

Skills in Borderlands 4 are the backbone of any Vault Hunter build. They are grouped under distinctive Skill Trees. There are 3 Skill Trees per Vault Hunter, and each Tree has 3 Skill Tree Branches.

The majority of a Skill Tree consists of Passive Skills. They can be either Conditional - trigger whenever a Vault Hunter does something - or Passive - work all the time. Besides Passive Skills, each Tree has one Action Skill and a couple of Augments and Capstones. Vault Hunter's Action Skill, available from the start but needs to be assigned from a Skill Tree, is a powerful Ability they can use when not on cooldown. Augments provide various additional bonuses to an Action Skill. Lastly, Capstones are build-defining heavy modifications to Action Skills. Capstones are positioned at the end of each Skill Tree Branch.

Both Augments and Capstones don't need Skill Point investment in themselves to be unlocked. Instead, they become available once a certain total number of Skill Points invested in a Skill Tree is reached. In total, each Skill Tree offers 3 Capstones and 5 Augments. Please notice that a Vault Hunter can only equip one Augment and one Capstone in addition to an Action Skill. Augments and Capstones from a specific Skill Tree are tied to the Action Skill of that Skill Tree.

Vault Hunter Skill Trees

Siren Skill Trees

Exo-Soldier Skill Trees

Gravitar Skill Trees

Forgeknight Skill Trees

 Siren Skill Trees