Earth Dragon

The Earth Dragon (nicknamed Rocky by Cole) is the Dragon guardian of the Scythe of Quakes and is Cole's pet. It's now the Ultra Dragon.

History
Sensei Wu placed the Earth Dragon as a guard of the Scythe of Quakes in the Caves of Despair. The Scythe was placed in the dragon's mouth.

Ninja Discovery
Many, many years later, the Earth Dragon was awoken when four ninja, Kai, Jay, Cole, and Zane, removed the Scythe from his mouth. He scared off Samukai's skeleton army, and proceeded to assault the ninja in order to protect the weapon. Kai ended up using the Scythe to cause a cave in, bringing down rocks on the dragon's head. This only served to slow the beast down, but the ninjas were still able to escape. Later, the ninja used him as a mount for Cole in order to cross over to The Underworld to recapture the weapons.

In Season 2, the Earth Dragon served as Cole's mount, while protecting the Scythe that Cole wielded. Due to the dragons molting, they flew east, and came back in the second season's finale as the ultra dragon.

Appearance
The Earth dragon has a very rocky skin, so much so that he could camouflage himself as a pile of rocks with ease. He has large brown wings with holes in them, and a spiked tail. In the set, 2509 Earth Dragon Defense, he is missing the wings, but instead has a green frill around his neck. He is one of the only dragons who's forelegs are separate from his wings, the other being the Lightning Dragon. He is the only dragon with a different head design from all the others.

Official Set Appearances
The Earth Dragon has only appeared in 2509 Earth Dragon Defense.

Trivia

 * Even though the Earth Dragon has wings in the TV series, it does not have wings in its physical LEGO version.
 * He has a different head shape from the other dragons.
 * In Season 1 he was the first dragon encountered.