These so-called "living shadows" only manifest in the darkest twilight or deep in ancient catacombs. They are wispy and immaterial creatures seeming made of pure darkness, that viciously lash out at any living creature they encounter with razor-like "claws". Travelers often find large, smooth gashes in trees, or mutilated animal carcasses seeming sliced again and again to mere ribbons with no evidence of a predator feeding; these are the only real evidence of the nuragra's existence. They are very rare and have never been "seen", as they seem to melt into the shadows if light from a torch or a spell is set upon them. They can seemingly be harmed by magic and magical weapons, but it is unknown if they are killed or merely injured and flee, as they leave no corpses behind.