The rarity of Sect of Kaktos is Mythical, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
Sect of Kaktos is a skin for Nyx Assassin. The skin was added to the game on January 12, 2017, it was created by VLEK.
Sect of Kaktos is currently one of the most popular skins, but it is rarely seen in the game due to its high price.