Witch Staff is a skin for Witch Doctor. The skin was added to the game on May 13, 2014. It was created by VALVE.
The rarity of Witch Staff is Rare, and been equipped it takes a “weapon” slot. The skin doesn’t have alternative styles. At this moment the item is available for trade.
At the moment, Witch Staff is not on the list of popular skins and is rarely seen in the game.