Theatre Magic
Theatre magic does not merely show false images. It assigns roles so convincingly that reality begins honoring them. In Gildglade, a mask can lend a profession, a street can acquire a duplicate, and the actor may eventually forget there was ever a face beneath the part.
A Role That Becomes Real
The source places Theatre or Illusion magic under Soul, which immediately separates it from ordinary visual deception. Its active source in Gildglade is the Separation Node - described here as a machine of scenery - and its characteristic operations make the city behave like a stage. Streets can be duplicated into phantom quarters. Masks can assign temporary roles that carry real abilities. A scene does not only fool an observer; it persuades reality to sustain a version of who someone is or what a place is.
That is why the school can "lend" knowledge without ordinary study. A professional mask can temporarily grant access to skills because the role is being held as a piece of identity rather than remembered as a lesson. The mage's Soul functions as the anchor that keeps the staged image from collapsing immediately back into unreality. In Gildglade, where the Node, the Theatre of Illusions and the Golden Order already train citizens to live through public roles, the school becomes far stronger than it is in open wilderness.
The price follows the same logic. If a role can become real, the distinction between actor and role can become unreal. Repeated practice produces role psychosis, delamination of reality and loss of the original self. The source's image is simple and severe: the illusionist eventually stops taking off the mask after the performance. The caster may still function brilliantly, but Function and appearance have begun to crowd out the person who once chose them.
This is also why Theatre magic belongs naturally to Gildglade's politics. The city is already described as both altar and performance, governed through masks, secret roles and ritual accounting. Illusion there is not a decorative school beside the "real" systems of power. It is one of the ways power becomes believable enough to become true. Outside nodes and urban stages the school weakens sharply, revealing that its greatest resource is not imagination alone but a social environment willing to perform the same fiction with the caster.