Chi is the energy reserve for Windwalker monks introduced with Mists of Pandaria. Originally it was intended for there to be "light" and "dark" chi, but this was changed. Originally, like warriors and death knights, the Brewmasters built up chi in combat, but this was later removed with Legion; Windwalkers have retained this ability. Mistweavers used to build up chi by casting spells.  With Chi built up, players can pull off finishers which will cost anywhere from one to four chi "spheres". Chi degrades over time.
Patch changes Edit
- Patch 7.0.3 (19-Jul-2016): Brewmasters and Mistweavers no longer use Chi.