The rarity of Guardian of the Eternal Seasons is Mythical, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
Guardian of the Eternal Seasons is a skin for Nature's Prophet. The skin was added to the game on March 12, 2014, it was created by kunkka.
Guardian of the Eternal Seasons is currently one of the most popular skins, but it is rarely seen in the game due to its high price.