Greg Street, former lead systems designer on World of Warcraft, has joined Riot Games as lead game designer, according to his LinkedIn profile.
Street left Blizzard last November after nearly six years at the company. As lead systems designer, Street and his team were behind the fundamentals of how World of Warcraft plays, including game mechanics, user interface and classes.
According to his Facebook page, Street began working at Riot Games in December.
(via Polygon)