Established source
Its Quasar component ties it to the material; its Penumbral component to relations and dynamic flow.
Rosmer CreativeWitchcraft enters the known magical traditions.
Witchcraft is an emergent interaction between Quasar substance and the Penumbrae—the relationships, connections and ceaseless flow between things.
Open the complete Witchcraft dossier ↗Its Quasar component ties it to the material; its Penumbral component to relations and dynamic flow.
Its discovery opens the Age of Darkness.
The original plane, practice, limits, social role and consequences of Witchcraft have not yet been fixed in the canon.