Darkness

Darkness is one of the six core Affinities of Power which are the source of magic in Celestia.
The other five affinities are: Chaos , Essence , Light , Nature, and Order Affinity.
The Celestial, Kaden, son of Celeste, is the ethereal embodiment of the darkness affinity. Kaden combined seeds of darkness with Toron's seeds of nature and Kyron's seeds of chaos to create Orcs and Goblins.