The rarity of Primeval Predator is Mythical, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
Primeval Predator is a skin for Bloodseeker. The skin was added to the game on September 14, 2016, it was created by katzeimsack.
Primeval Predator has been recently added to the game, which makes it rather popular with the game community.