Lightning Dragon

The Lightning Dragon (nickanamed Wisp) is the guardian of the Nunchucks of Lightning and Jay's pet.

History
The Lightning Dragon was placed in the Floating Ruins by Sensei Wu to guard the Nunchucks of Lightning.

Ninja Discovery
When the Ninjas found the Nunchucks of Lightning on top of the Floating Ruins, the Lightning Dragon appeared. The Ninjas escaped from there and this dragon did not follow. When Kai and Nya escaped the Fire Temple, they brought the Lightning Dragon, along with the other dragons, to the temple. Jay eventually rode this into the Underworld.

Rise of the Snakes
The Lightning Dragon has appeared in Ninjago: Rise of the Snakes. He currently helps guard the Nunchucks of Lightning, which are in the possesion of Jay. According to Jay in episode 3, Snakebit, the dragon's name is Wisp.

Appearance
In its LEGO set, the Lightning Dragon looks similar to the Ice Dragon except that it has four legs, it is a darker blue, Jay sits on a saddle-like structure, and its tail is wider and can bend in different directions.The Lightning Dragon is the only dragon to have 6 limbs in the set.

Set Appearances
The Lightning Dragon only appears in the limited edition set 2521 Lightning Dragon Battle.