Yesterday Blizzard revealed a new Diablo game designed for mobile phones, and the world is still trying to process what to make of it. While visiting Blizzard for our new cover story on Warcraft III: Reforged, we spoke with Diablo Immortal's lead game designer Wyatt Cheng talks about the history of development on Blizzard's collaboration with NetEase and what the team has in store for fans of Diablo.