Expendable Assets

Expendable Assets is Jack's action skill in Borderlands: The Pre-Sequel.

Strategy
Upon activation, there will be a miniscule delay after which Jack will summon two Digi-Jacks, which will fight for Jack using wrist-mounted shock blasters, constantly lose health, and be destroyed if Jack travels too far from them too swiftly. When a Digi-Jack is destroyed, whether by an enemy or by the aforementioned separation trigger, a new Digi-Jack will be constructed near Jack himself.

The default duration of this skill is 40 seconds, but it can be ended early by holding down the skill key. Ending the skill in this way refunds some of its cooldown based on on how much duration was left unused.