Void Magic

Note: This is a fanon interpretation of Void Magic.

Void Magic is a school of magic that utilizes Void energies. While most forms of magic use Arcanotons, Void Magic uses separate forms of energy commonly referred to simply as Void energies.

Though it can utilize the power of a darkened Naaru or a Void God, the casting of Void Magic is not dependent on such sources, and can be cast normally without any specific source. For that reason, Void Magic is its own school, not belonging to Divine Magic.

Void Energies
Void energies are a simplistic way of referring to the resource applied in Void Magic. These energies typically hold a property that attracts souls, as shown when a darkened Naaru is in need of regeneration and effectively draws souls in the process. It can be assumed that these energies are harmful to a soul, presumably damaging, corrupting, or consuming the spiritual body.

Voidspawn
Voidspawn refers to creatures created through Void Magic. These creatures can be found in many circumstances, from wild Voidwalkers in Outland to subjugated versions utilized by mortal Warlocks. It can be assumed that any Voidwalker or Voidlord that could be subjugated by a mortal is a expontentially weaker than a form of Voidspawn that exists outside of mortal reach.