The rarity of Mace of the Tentacular Timelord is Common. At this moment the item is available for trade.
Mace of the Tentacular Timelord is a skin for Faceless Void. The skin was added to the game on January 7, 2014, it was created by Mr. Scrake.
Mace of the Tentacular Timelord is currently one of the most popular skins, but it is rarely seen in the game due to its high price.