Hideous Zippleback

The Hideous Zippleback is a large Mystery Class (formerly Fear Class) dragon that first appeared in How to Train Your Dragon. The Zippleback's head, neck, and tail movements were inspired by cobras, as they were "fluid" and "mesmerizing", says Simon Otto. Their posture and walking structure, however, resembles that of a Komodo dragon or a horned lizard. Original concept art, such as Two Headed by Nico Marlet, depicted the Zippleback with three heads and a flatter, more collapsible skull. Special attention was paid to...

Fire

Ammonium nitrate mixed with anhydrous hydrazine

Size

Large: 70 feet 10 inches

Habitat

Caves

Attack / Armor

12 / 10