Build 4973

Build 4973 is a Hearthstone patch released on March 13, 2014. It was versioned 1.0.0 with the build number 4973. It was released during the expansion Legacy

Quote From Blizzard

• Fixed an issue where Keeper of the Grove was unable to be played if there were no valid targets for its Battlecry.
• Fixed an issue where the client was not accurately reflecting the amount of mana used for spells or minions that had their mana cost reduced.
• Improved board gravity to fix an issue where opposing minions appeared to be face up near the opponent’s hand after being cast rather than placed on the game board.
• Fixed an issue where some players were unable to access Practice Mode.
• Restored justice to the Sword of Justice so it once again functions properly under all circumstances.
• Fixed an issue where some players were experiencing a client crash when completing an Arena run.