In this wing of the Caverns of Time, a group of players must defend the last Guardian Medivh, in a swamp known as The Black Morass. The Guardian Medivh, possessed by Sargeras, attempts to open the Dark Portal to Draenor, while wave upon wave of dragonkin of the infinite dragonflight attempt to defeat Medivh in order to alter time and halt the invasion of Azeroth from Draenor. This time sequence is set about a few months before Warcraft I events (circa 30 years before WoW).