• Battlemaster's Alacrity
• Item Level 133Disenchants into:
  [Void Crystal]: 1-2
• Binds when picked up
• Trinket
• Requires Level 70
• Equip: Improves haste rating by 40.
  Use: Increases maximum health by 1750 for 15 sec. Shares cooldown with other Battlemaster's trinkets.
• Cooldown: 3 min
• Vendor 75

Source

This item can be purchased for 75 from G'eras in Shattrath City.

Patch changes

Patch 2.4.0 (25-Mar-2008): Added. 

External links

• Battle.net (EU)
• Wowhead
• Thottbot
• WoWDB