Know True Shape

Information 
Tells if the subject is under any kind of Shapeshifting spell or similar magical effect, including Alter Visage, Alter Body, and illusions. The caster must be able to see the subject. The spell also gives a general idea of the subject’s true shape; on a critical success, it identifies the subject’s true nature (including a common name or description) and the magic used to disguise it. It does not reveal the nature of Hallucinations.

Cost: 2. 
Prerequisites: Magery 1, any one shifting spell (Shapeshifting (VH), Alter Visage or Alter Body, Plant Form, Shrink (VH), etc.), and either Aura or Know Illusion.

Item 
Wand, staff, or jewelry (a favorite is a medallion or coin with an “Aperture of True Vision” in it). Usable only by mages.  
Energy cost to create: 250.