Metamancy is a discipline of Thaumaturgy in which the practitioner takes on the physical properties of different materials throughout their body. This does not affect their normal biology, although they are capable of assuming metallic, stone-like, inorganic or aggregate properties.
This discipline usually requires a sample of the material to be assumed, although there are rumors that there exist some practitioners who do not require any such foci, instead being able to assume these properties from memory. This ability can make practitioners of this art exceptionally resilient to damage.
In some cases, it has been observed that the practitioners of this art have the limited ability to manipulate, animate or affect materials whose properties they have assume or are assuming in the past or presently.