Eruptodon

The Eruptodon is a Boulder Class dragon which appears in School of Dragons and will appear in Dragons: Race to The Edge, Season 4.

Physical Appearance
Eruptodons have a round body and quite a long tail. Their wings are relatively small and their heads are as big as their bodies. Their front legs are very small compared to their hind legs and they have several big, rounded spikes along their backs and tails.

Behavior and Personality
This dragon is the first known species to eat lava. As such, this dragon prevents volcanic eruptions by residing in the magma vent of a volcano and eating overflowing lava. As such, Mala and her people worship this dragon for protecting their village. She mentions that the Eruptodon never allows the lava to flow too far down, hinting that the dragon may have a protective streak over the land and village.

Season 3
First mentioned in "Defenders of the Wing, Part 1", the only Eruptodon known to exist was found on a island ruled by Queen Mala of the Defenders of the Wing. It was known as the Great Protector. However, it was taken by the Dragon Hunters when Mala was interrogating Hiccup and his group.

Trivia

 * It is the first dragon (not created in a video game) which makes an appearance in a game before it does in the show.
 * However, it did make its first appearance as a statue in the show.
 * It is the second dragon which is seen as a statue before being physically seen, the first one being the Grapple Grounder.