The rarity of Garb of the Frost Lord is Rare, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
Garb of the Frost Lord is a skin for Lich. The skin was added to the game on May 13, 2015, it was created by DrySocket.
Garb of the Frost Lord is currently one of the most popular skins, but it is rarely seen in the game due to its high price.