''You seem to know a lit, Miss Weasley. These are not just basic information. Ten points for Gryffindor. Since this is an introductory class I will finish this one shortly. As Miss Weasley correctly said, Transfiguration is the art of transforming one object into another. It can be performed in a variety of ways and can result in a variety of transformations. Some parts of transfiguration are regulated by Gamp's Law of Elemental Transfiguration, which you will describe in detail. Regarding its branches.
Animagi are people with the ability to transform themselves into animal. It is an ability that can be learned an practiced during your life, but... in order to act freely, you have to register yourself in the Ministry. Metamorphmagi are similar, but have much more options regarding their transformations.
Conjuration is a special branch that we will explore on your N.E.W.T. classes. It is the ability to conjure objects from thin air. This is the branch of Transfiguration that is mostly restricted by Gamp's Law.
Cross-Species Transfiguration is the opening lesson for N.E.W.T.-s and gives us the ability to transform one species into another. Inanimate to Animate Transfiguration allows us to transform gargoyles, for example, into living creatures.
Self-Transfiguration is probably the most difficult branch of transfiguration. It allows us to transform ourselves into any object. It requires big skill and a lot of knowledge or else... You can transform only parts of your body, but also the whole body.
Untransfiguration is simple - the ability to return a transfigured object in its original state. It can get more complex, though. Depending on the complexity of the original spell.'', McCoy said.
He then looked at the class. ''This has been brief and, I hope, not too boring. For your homework, I want an essay about Gamp's Laws. What are they and what they restrict. At least 5 paragraphs, although not too long. You have one week, means until 28 NOVEMBER. People who do not write their homework will get a T. Class dismissed, see you next time.'', McCoy said.
(Classes will be shorter now, since I have a quota to fill until term ends.)