The rarity of Comb of the Great Grey is Uncommon. At this moment the item is available for trade.
Comb of the Great Grey is a skin for Lycan. The skin was added to the game on May 21, 2013, it was created by Vladimir >the implyer.
Comb of the Great Grey is currently one of the most popular skins, but it is rarely seen in the game due to its high price.