The rarity of Supreme Axe of the Warboss is Rare. At this moment the item is available for trade.
Supreme Axe of the Warboss is a skin for Axe. The skin was added to the game on August 31, 2016, it was created by Dr. Robo.
Supreme Axe of the Warboss has been recently added to the game, which makes it rather popular with the game community.