History of 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.