The rarity of Knight of the Burning Scale is Mythical, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
Knight of the Burning Scale is a skin for Dragon Knight. The skin was added to the game on June 2, 2015, it was created by Graff.
Knight of the Burning Scale is currently one of the most popular skins, but it is rarely seen in the game due to its high price.