Nystul's undetectable aura

Nystul's undetectable aura was a common spel used by merchant princes, sorcerers and wizards across Faerun.

Effects
When cast, the spell allowed a caster to hide an item's magical aura, allowing the item to be undetectable from spells. If identify is used on the item, it will reveal that the aura is hidden or false and the item's properties became known.

Components
In addition to verbal and somatic components, the spell required material components, a piece of silk cut into a square. During casting, the caster had to glide the silk over the target object.

History
The spell is used on the magical weapon Azureedge. The spell hides the weapon's magical properties.

Appearances

 * Adventures:
 * City of the Spider Queen