If you've been building reputation with the Thorium Brotherhood in WoW Classic or WoW's Season of Discovery, chances are you've come across Dark Iron Residue.
Classic WoW: Exalted Thorium Brotherhood Reputation Guide
If you’ve ever run Blackrock Depths, there’s a near 100 percent chance that you have some Dark Iron Residue in your bags. Luckily, you can unload it en masse for reputation with the Thorium Brotherhood, provided you’ve already reached a certain reputation threshold.
Here's what you can do with Dark Iron Residue in WoW Classic and where to get more of it.
Dark Iron Residue is required for the mission "Gaining Acceptance", a repeatable turn-in quest that unlocks after you achieve Friendly Reputation with the Thorium Brotherhood.
