The rarity of Darkbrew Enforcer is Mythical, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
Darkbrew Enforcer is a skin for Alchemist. The skin was added to the game on April 26, 2016, it was created by BaNdenG.
Darkbrew Enforcer has been recently added to the game, which makes it rather popular with the game community.