Gangue shade

The Gangue Shade is an unmarked quest encountered in the Dead Trenches in Orzammar. To start it you need are required equip a full set of Legion of the Dead armor on one the Warden or on one of his companions. Activating the Legion of the Dead Relic (found in the room where you acquired the helmet in the central area) while the entire harness of armor is equipped by any party member summons the Gangue Shade, which appears to be a fairly garden-variety shade with a unique name. When defeated, it may drop no loot at all or a randomly selected leveled item (often medium armor of some type). The encounter does not trigger a quest or journal entry, although a Gangue Shade codex entry does appear.