Transfiguration is the magical art of changing the essence of an object, as opposed to simply changing the properties of said object[1]. Transfiguration is very difficult and very dangerous, and it is ill-advised to be fooling around when performing it[2].

When Transfiguring, it is important to make firm and decisive wand movements, and not to twirl or wiggle the wand unnecessarily, or else the Transfiguration in question will certainly be unsuccessful[3]. Then, one must form a clear mental picture of what they are wishing to create and speak loudly and clearly - more advanced wizards need not say an incantation at all[3].

Minerva McGonagall taught students at Hogwarts School of Witchcraft and Wizardry the art of Transfiguration; it was mandatory for students of all years[2].

The Switching Spell is a spell used for Transfigurations, used to change one thing into another, and the Vanishing Spell is a spell used to make something disappear; it is also an example of Transfiguration.


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