- The Strength of One's Foes: All bosses in Mogu'shan Vaults, Heart of Fear, and Terrace of the Endless Spring now have a chance to drop either a Sigil of Power or Sigil of Wisdom
- Minimum level requirement to enter and equip items found in the following dungeons via Dungeon Finder have been adjusted.
- Gate of the Setting Sun is now available in Normal difficulty, and accessible to level 89 characters.
- Grim Batol is now accessible at level 84, down from level 85.
- Lost City of the Tol'vir is now accessible at level 84, down from level 85.
- Magisters' Terrace is now accessible at level 68, down from level 70.
- The Mechanar is now accessible at level 68, down from level 70.
- PvP Power conversion ratio to obtain 1% damage at level 90 has been changed from 265 to 400.
- To facilitate a more balanced team composition, players now need to select a role when queuing up for a Battleground or Rated Battleground.
- Justice Heirloom vendors now have Heirloom shields in stock.
Filed under: Mists of Pandaria
Source : http://wow.joystiq.com/2013/05/07/patch-5-3-ptr-patch-notes-updated-for-may-7/