Patent of magic research. Ur's research paper on shadow magic is the professional task of nostalgic costume wizards in World of Warcraft. After receiving the task, players need to go to Red Ridge Mountain to get Ur's research paper on shadow magic. After the task is completed, a patent for magic research will be awarded to the Ministry of Magic. World of Warcraft is the first online game produced by Blizzard Entertainment, a famous game company, which belongs to a massively multiplayer online role-playing game.