World of Warcraft: Mists of Pandaria: The Thunder King

Patch 5.2.0: The Thunder King is the first World of Warcraft: Mists of Pandaria patch of 2013 that focuses on the return of the Thunder King. It was targeted to be released February 26, but was delayed for March 5. This patch includes a massive new raid dungeon, a multi-faceted new quest hub, Pet Battle improvements, new world bosses, significant class balance changes, brand new pets and mounts, assorted bug fixes, and more. Ten client patches all called "Patch 5.2.0" have been released so far, all to fix minor bugs. See the patch list for more information.

While war between the Horde and the Alliance raged across Pandaria, the scattered mogu plotted a return to their terrible former glory. They rekindled their historical alliance with the Zandalari trolls, who managed to resurrect the tyrannical mogu emperor, Lei Shen the Thunder King, in the hopes of restoring mogu dominion over the continent. The valiant Shado-pan rushed to suppress their enemies, creating a task force, the Shado-pan Assault, originally composed of pandaren warriors and later supported by heroes of the Horde and Alliance. These fearless champions strove to defeat the Thunder King, though they also simultaneously served their factions' interests on Pandaria. Jaina Proudmoore led the Kirin Tor Offensive on a quest to uncover the source of all mogu power (and keep it from the Horde), and Lor'themar Theron took the Sunreaver Onslaught in search of mighty mogu weaponry to aid a daring plan…an insurrection against Warchief Garrosh Hellscream.