The Overlord (MLPTPN: SOTO)

The Overlord, also known as the Golden Master, is an evil spirit and the main antagonist of My Little Pony Transformers Prime Ninjago: Shadow of the Overlord.

Early Life
At some point, the Overlord created the Nindroids, the Nindroid MechDragon, and the Destructoid and hired Pythor as his second-in-command. Later, he met Christopher Valiant and promised to restore his human form if he helped him.

My Little Pony Transformers Prime Ninjago: Shadow of the Overlord
The Overlord came to Canterlot during the Friendship Festival intent on finding the Storm King's staff and using it to steal the Alicorn Magic to become the true master of the universe. However, when Pythor and Cryptor turned Celestia and Cadance to stone, Twilight and Luna managed to escape. The Overlord knew without all four princesses, he couldn't use the staff to become what he wanted to be,