The rarity of Throes of Anguish Set is Rare, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
Throes of Anguish Set is a skin for Queen of Pain. The skin was added to the game on July 15, 2013, it was created by CTaKaH_MoJIoKa.
Throes of Anguish Set has been recently added to the game, which makes it rather popular with the game community.