Harry Potter - Secrets of Hogwarts

You create a 20-foot-radius hemisphere of magical energy to protect you from one or more of the following: Dark wizards, other Dark beings, or Dark beasts. The circle affects creatures of the chosen type(s) in the following ways. The affected creatures can't willingly enter the hemisphere by nonmagical means. If the creature tries to use apparition to do so, it must first succeed on a Charisma saving throw. The affected creatures have disadvantage on attack rolls against targets within the hemisphere. Targets within the hemisphere can't be charmed or frightened by affected creatures. At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the duration increases by 1 hour for each slot level above 3rd.