The Full Detoxify spell completely removes all poison from a character. This spell is very rarely used, except in situations where the poison is very severe, such as in a duel. Otherwise, the Greater Detoxify or Lesser Detoxify spells are more efficient. When dueling, Ghosts can be poisoned if a nearby Wizard uses the Poison Field spell. When these ghosts are resurrected, they will be poisoned to the highest degree and die very quickly. To prevent this from happening, the poisoned ghost will require Full Detoxify after resurrection.