Overlord

Arch-enemy of the First Spinjitzsu Master and the source of all evil in the world. Also known as the Dark Lord, the Overlord was consigned to Dark Island after the First Spinjitzu Master split the land in half. Existing as a spirit, the incredibly powerful Overlord plotted to return to the human plane of existence, using Garmadon and the Stone Army as his pawns. He is a skilled manipulator who has directed events from behind the scenes for centuries. His original form is a dragon.