The rarity of Venomous Deathbringer is Mythical, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
Venomous Deathbringer is a skin for Venomancer. The skin was added to the game on May 21, 2014, it was created by blossomalex.
Venomous Deathbringer has been recently added to the game, which makes it rather popular with the game community.