World of Warcraft players can find a Tarnished Undermine Real, an important currency from Season of Discovery, in the new zone of Patch 11.1, where they can exchange it for the Undermine Undershirt transmog. By finding this nostalgic World of Warcraft treasure, fans can trade the coin with the modern version of the Season of Discovery Tarnished Undermine Real vendor to collect the purple shirt worn by her Classic counterpart.