Wrātcrystals (concept)
Wrātcrystals are created during Gudugwrāt, the Rogue Storm, whenever its powerful lightning strikes the sand, leaving behind magical crystals that crackle with energy. Highly unstable, most crystals are refined by the scholars of Candamārun Academy to be used in magical rituals. Acquiring these crystals is highly dangerous, as it requires journeying towards the center of a deadly storm, risking death by magical exposure, lightning strikes, and the cursed creatures that walk along the sea floor.