Shield charms are magical spells used to create protective barriers around individuals or objects. These charms can deflect harmful spells, physical attacks, or other dangers, providing a layer of safety. In the world of magic, they are often employed by wizards and witches to safeguard themselves or their belongings. One well-known example of a shield charm is the Protego spell, which is frequently taught in magical education. Shield charms can vary in strength and duration, depending on the caster's skill and intent. They are essential tools in defensive magic, helping to ensure the safety of the caster in various situations.