The Void's law of three surrounds the three voids: The Time Void (Tasraka), The Space Void (Arsgoetia) and the Void between Space and Time (Erutis). These three voids are the only sources of the three void magics: Void Dark, Void Time and Void Perdita.
Void Dark and Void Time follow the typical acceptance of their magical categories, those being Dark and Etherealis, however being a Perdita (Arcanus) magic, Void Perdita is illegal to use without either an abstraction and rescinded license, or a "species affinity pass" - where you're born as a species with a natural affinity with the magic, and thus are typically born with an understanding naturally of how it works and affects nature.
Void magic goes through radioactive phases of decay, and release the three main radiation particles respectively:
Void Dark (Alpha)
Void Time (beta)
Void Perdita (Gamma)
While the magic doesn't have a half life, it can cause some extreme effects to people without the correct affinity or essential protection in the long run. The use of special equipment without a species or essential affinity is recommended for these magic types.
Void magic, currently, is not accessible to be applied by typical players and is not yet introduced into the story. After it's been introduced into the story, it will then be opened to be used by regular players.