Generic Monstrous Nightmare How to Train Your Dragon Soft Plush Toy Stuffed Animal Figure Doll 29" The Monstrous Nightmare is one of the most aggressive, powerful, and stubborn breeds of dragon known to Vikings. Until the Seadragonus Giganticus Maximus was discovered, it was A Nightmare is usually purple or scarlet and possesses a long, snakelike neck and tail. Unlike some other breeds of dragon, it has no forelegs, and its ground-based locomotion is similar to that of pterosaurs; it can use its claw-tipped wings to "crawl" along the floor. Size: Wingspan Approximate 19 inches, Height from paws to head Approximate 14 inches , Length from nose to tail Approximate 29 inches. Soft Plush Toy. Stuffed Animal. Perfect as a gift for all How To Train Your Dragon(Monstrous Nightmare) fans.