The rarity of Acolyte of Vengeance is Rare, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
Acolyte of Vengeance is a skin for Anti-Mage. The skin was added to the game on May 21, 2014, it was created by Jeremy Klein.
Acolyte of Vengeance has been recently added to the game, which makes it rather popular with the game community.