The rarity of Phasma Phasmatis is Rare, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
Phasma Phasmatis is a skin for Spectre. The skin was added to the game on February 25, 2014, it was created by IGWTmenace.
Phasma Phasmatis has been recently added to the game, which makes it rather popular with the game community.