Blizzard released news at BlizzCon 2011 that a new arena map would be implemented with the release of Mists of Pandaria. Tol'Vir Arena or Tol'Vir Proving Grounds will be similiar in nature to the existing Nagrand Arena. The map layout looks better from a design view as opposed to the most recent additions Dalaran Sewers and Ring of Valor. Previously Blizzard took a casual approach to new arena maps; trying to create dynamic and 'fun' arena layouts which ultimately failed. Every player has competitive nature somewhere in their personality and no player wants to play an arena map where external deciding factors can decide the outcome of an arena match (such as moving pillars, Ring of Valor…).