The rarity of The Plaguemonger is Rare, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
The Plaguemonger is a skin for Necrophos. The skin was added to the game on September 18, 2017, it was created by ChiZ.
The Plaguemonger is currently one of the most popular skins, but it is rarely seen in the game due to its high price.