When Blizzard Entertainment announced in 2011 that it was working on a multiplayer online battle arena game featuring some of its classic characters as well as favorites from the “StarCraft,” “Warcraft” and “Diablo” universes, fans were thrilled. These characters are beloved by Blizzard fans, they have lore attached to them, and so far no other multiplayer online battle game had used characters from other games, as they are all owned by the same developers.