The dragon was used as a mount by the Phantom Virus.
The dragon was huge and large, had red scales with a blue belly, a long neck, big teeth, big horns, large wings, and a long tail.
Powers and abilities
The dragon flies and breathes fire.
Scooby-Doo and the Cyber Chase
Scooby and Shaggy were in level 8 in the medieval times where the virus was riding on a dragon, and the princess was tied to a tree and had the box of Scooby Snacks. Scooby ran like a horse and Shaggy threw water at the dragon's mouth and the flames went out. The dragon flew away with the virus. (Scooby-Doo and the Cyber Chase)