If you aren't familiar with the MDI, imagine teams of professional World of Warcraft players each competing for the fastest possible completion of end-game raid content. It is like the MMORPG equivalent of a triathlon: teams must be prepared to adjust on the fly to a variety of different challenges and obstacles that test their raid's teamwork and efficiency to the absolute limit.
For a limited time, two in-game World of Warcraft toys available for purchase will contribute to the prize pools of major esports events.
With the introduction of Mythic Dungeon Invitationals, World of Warcraft seems to have found an improved way to spotlight how competitive and entertaining the game can be.