In Harry Potter, spells are an essential piece of magic used by wizards all over the wizarding world. Spells can vary from deadly attacks, such as Avada Kedavra, to defense spells, such as Protego Maxima. Even with the variety of spell types existing, healing spells are often considered some of the most valuable and essential for a wizard to learn, with the wizarding world being known for its dangers that can inflict damage on wizards.