The rarity of Augur's Curse Set is Rare, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
Augur's Curse Set is a skin for Death Prophet. The skin was added to the game on November 5, 2013, it was created by Vermilion Wlad.
Augur's Curse Set has been recently added to the game, which makes it rather popular with the game community.