Transubstantial Transfiguration

Transubstantial Transfiguration is an rare art of the magical phenomenon of Transfiguration. The theories of how to use it was covered in the book Theories of Transubstantial Transfiguration, a book that was stored in the library of Hogwarts School of Witchcraft and Wizardry and that the librarian Irma Pince put unusual and unnecessary jinxes and hexes on.

Appearances

 * Quidditch Through the Ages