World of Warcraft: Warlords of Draenor is the fifth expansion set to the massively multiplayer online role-playing game (MMORPG) World of Warcraft, following Mists of Pandaria. It was announced on November 8, 2013 at BlizzCon 2013. The expansion was released on November 13, 2014.

Thrall, born as Go'el, is a fictional character who appears in the Warcraft series of video games by Blizzard Entertainment. Within the series, Thrall is an orc shaman who served for a time as a Warchief of the Horde, one of the major factions of the Warcraft universe, as well as the leader of a shaman faction dedicated to preserving the balance between elemental forces in the world of Azeroth known as the Earthen Ring. Originally introduced in promotional material released by Blizzard Entertainment as the protagonist of the canceled video game Warcraft Adventures: Lord of the Clans, which was co-developed by Blizzard and Animation Magic from 1996 until 1998, Thrall's first proper appearance is in the 2001 novelization of the canceled video game's narrative authored by American novelist Christie Golden. The novel's story is set during his youth, where he is depicted as a slave who was raised by an abusive human military officer, but eventually rebelled and escaped captivity.