Sabre-Tooth Driver Dragon

The Sabre-Tooth Driver Dragon is an evergreen (non-hibernating) dragon used to pull viking sleighs. It is white, twice the size of a lion, with a frilled head and enormous sabre teeth. It also has terrible claws.

In the books
In How to cheat a Dragon's curse, Sabre-Tooth Driver Dragons pull the student's sleighs on the Hunting With Bows And Arrows On Skis expedition. Gobber the Belch's sleigh is pulled by One Eye, the leader of the Sabre-Tooth Driver's pack with a missing eye. One Eye drives Hiccup and Fishlegs ' sleigh and saves Hiccup's life from Hysterics and a clifftop fall. He remains with them for the entire quest for the frozen potato.

In the movie
Sabre-Tooth driver Dragons do not appear in the movie.