On gaining Dungeon & Raid Emblem, Arcanist Uovril is the NPC who sends alliance characters the message regarding their use: Emblem Quartermasters in Dalaran's Silver Enclave Your achievements in Northrend have not gone unnoticed, friend. The emblems you have earned may be used to purchase equipment from the various emblem quartermasters in Dalaran. You may find us there, in the Silver Enclave, where each variety of Emblem has its own quartermaster. We look forward to your arrival.