Astral Vapors Type Acquired by Effect ID Astral Vapors is a disease that can be acquired in Cyrodiil. Once contracted it damages magicka by 15 points, stunts your magicka and gives you a 25 percent weakness to magicka. This disease is often contracted when fighting or coming into contact with zombies. Current research shows that a particular kind of zombie, the Dread Zombie, is more likely to transmit the disease.