The rarity of Virtuous Roar is Mythical, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
Virtuous Roar is a skin for Storm Spirit. The skin was added to the game on October 9, 2015, it was created by GGGGGGGGGGGGG.
Virtuous Roar has been recently added to the game, which makes it rather popular with the game community.