1. Transfiguration: Transfiguration is the most basic magic, which can change objects into other shapes. In The Legacy of Hogwarts, Harry and his friends often use transfiguration to change their appearance to avoid being hunted.
2. Invisibility cloak: Invisibility cloak is a magical prop that can make people invisible. In the legacy of Hogwarts, Harry got an invisibility cloak, which can help him avoid being hunted and probed.
3. Flying broom: Flying broom is the most common means of transportation in the magical world, which can make people fly in the air. At Hogwarts, Harry and his friends often use broomsticks to fight and escape.
4. Wand: Wand is one of the most important props in the magical world, which can help magicians perform all kinds of magic. In The Legacy of Hogwarts, Harry and his friends use wands to fight and perform all kinds of magic.
5. Magic Circle: Magic Circle is a kind of props that can help magicians perform powerful magic. In The Legacy of Hogwarts, Harry and his friends use the magic circle to fight and exert all kinds of magic.
6. Magic potion: Magic potion is a potion that can help magicians recover their physical strength and treat injuries. In The Legacy of Hogwarts, Harry and his friends use magic potions to restore strength and treat injuries.
These are some changes in Hogwarts, and of course there are many other magic and props, which are just some of them.