The Emerald Dream was created as a backup copy to the World of Azeroth. The Nightmare is a corruption that is spreading across the dream and seeping into the natural world. Can my Demon Hunter save what remains of Val'sharah. Game: World of Warcraft: Legion. Property: Blizzard Entertainment. Twitter: @heroes_nlegends. Instagram:@theheroesandlegends. Email: [email protected]. Facebook: www.facebook.