The rarity of Fire Dragon of Doom is Rare, and been equipped it takes a “Bundle” slot. At this moment the item is available for trade.
Fire Dragon of Doom is a skin for Dragon Knight. The skin was added to the game on August 6, 2014, it was created by ㅎㅎㅎ.
Fire Dragon of Doom has been recently added to the game, which makes it rather popular with the game community.