Element of Ultimate Power

The Element of Ultimate Power is a Dark Element of Harmony and corrupts anyone that wears it. It is the result of Makuta's Mask of Ultimate Power and the Elements of Harmony clashing and mixing their powers together to create it.

My Little Pony Transformers Bionicle: Rise of the Element of Ultimate Power
It was created when Makuta fought the ponies and Autobots and the Element of Ultimate Power