The rarity of Bow of the Master Thief is Rare. At this moment the item is available for trade.
Bow of the Master Thief is a skin for Drow Ranger. The skin was added to the game on February 18, 2014, it was created by Jacque Choi.
Bow of the Master Thief has been recently added to the game, which makes it rather popular with the game community.