A Treasure Key is a consumable reward. It can used once to open a loot chest in the treasure room that is accessible immediately after completing a Prison of Elders challenge. Prison of Elders loot chests contain randomized loot but consist primarily of Legendary Queen-themed weapons, a chance for an Exotic weapon, and on challenge modes, a chance for Etheric Light.
How to Obtain
- Complete the House of Wolves story (guaranteed)
- Opening an Ether Chest (random chance)
- Opening one of the smaller chests in the Prison of Elders (random chance)
- Completing the first new Wanted bounty each week (guaranteed)