First Spinjitzu Master

The First Spinjitzu Master is the creator of Ninjago, the father of Wu and Garmadon, the paternal grandfather of Lloyd Garmadon, the father-in-law of Misako, and the arch-enemy of the Overlord.

Bio
The First Spinjitzu Master created the Realm Crystal to traverse the sixteen realms. More importantly, he forged the Four Golden Weapons of Spinjitzu in the Temple of Light using gold from the Golden Peaks. With the weapons, he created the island of Ninjago, including the Serpentine deep in the earth. The new land was at peace for a while, but Darkness eventually manifested to counterbalance the light of Ninjago. From the darkness came an evil creature called "The Overlord," who challenged the First Spinjitzu Master to battle for the fate of the world.

The First Spinjitzu Master fought the Overlord for a long time, with neither gaining the upper hand. Eventually, the Overlord created an indestructible army to aid him, nearly overwhelming the First Spinjitzu Master. To save the world from the grip of darkness, the First Spinjitzu Master used his powers to split Ninjago in two, destroying the Overlord's physical form and trapping the villain on what would come to be known as the Island of Darkness. This act balanced the forces of light and shadow, ensuring that the Overlord could never return to Ninjago.

With the Overlord defeated, the First Spinjitzu Master was able to seal away the dormant Stone Army in an indestructible tomb, which he buried deep beneath what would eventually become Ninjago City. At some point he traveled to the Island of Darkness to hide his Golden Mech in the Temple of Light, and gifted elemental powers to a select few to serve as their guardians, ensuring that their elemental would be passed to their descendants. The First Spinjitzu Master later settled in the Monastery of Spinjitzu.

The Overlord
????