The rarity of Penumbral Vesture Set is Rare, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
Penumbral Vesture Set is a skin for Phantom Assassin. The skin was added to the game on April 30, 2013, it was created by Robbiek1000.
Penumbral Vesture Set has been recently added to the game, which makes it rather popular with the game community.