Mastery Gem

Mastery Gems were gems that originally customized the graphical effect of one or more hero abilities, while Kinetic Gems customized model animations. They were hero-specific.

After the August 14, 2014 Patch, Mastery Gems and their functions were merged with Kinetic Gems. Mastery Gems that existed prior to this patch retained their names and functions.

List
Previews can be found on each gem's individual pages.