Ruby Dragon is a red elemental dragon from the Puzzle & Dragons franchise, appearing as part of the series’ many monster and mascot-like characters. It is typically portrayed as a fiery, ruby-themed dragon associated with the fire attribute. In the broader Puzzle & Dragons universe, Ruby Dragon serves as a collectible monster and a recognizable representative of the game’s dragon roster, often used in evolution lines, team building, and promotional material. It symbolizes power, heat, and the fire element.