Compound Ether

Compound Ether is an item dropped by the Fallen, used in the Black Armory forge quest.

Acquisition

Compound Ether is gathered from Fallen enemies. It is collected alongside a Weapon Core, which comes from a stolen Black Armory crate, and Radiant Seeds, which are used to build a Radiant Matrix. The quest starts with Ada-1, the Black Armory Curator in the Tower Annex on the European Dead Zone, who gives you a weapon frame.