Originally, the rogue Jedi Allya, who was exiled to Dathomir, taught the powers of the Force to her children there, giving them an evolutionary advantage over the planet's other inhabitants. After Gethzerion founded the Nightsisters, she developed her own brand of magic that her coven coined Shadow Magic, or more colloquially as magicks. As a result, the other witch clans took to calling their own practices Allyan Magic, believing that the Nightsisters had corrupted the beauty of Allya's original magic.