Originally Posted by Blizzard Video Policy
Blizzard Entertainment strongly supports the efforts of its community members who produce community videos (referred to hereafter as a "Production") using video images, footage, music, sounds, speech, or other assets from Blizzard's copyrighted products ("Blizzard Content"), subject to a few conditions. Note, however, that Blizzard Content does not include trailers or advertisements promoting Blizzard games or services that are not incorporated into a Blizzard game.