The Overlord is the creator of the Stone Army. A primordial dark entity, he first manifested as a draconic being that challenged the First Spinjitzu Master, who was well aware of the creature's true nature. The First Spinjitzu Master succeeded, defeating the Stone Army and trapping the Overlord on the Dark Island. Wanting to take revenge, he corrupted a lone serpent and sent her after the Spinjitzu Master's oldest son, Garmadon. Thousands of years later, Garmadon got command of the Stone Army.