Warding Cornerstone (HB)

You touch a building and bless it with abjurant magics that ward it from trespassers. The building must not be larger than a 60-foot Cube. When casting this spell, you also designate a creature that you can see or are familiar with as the building's householder. For the duration, the spell affects creatures in the following ways:

• A creature that tries to enter the building must first succeed on a Charisma saving throw, unless the householder grants it permission to enter. Creatures of the Elemental, Fey, Fiend or Undead type also take 1d8 Psychic damage on a failed save.

• Creatures inside the building cannot be Charmed, Frightened or possessed by creatures outside the building.

Using a Higher-Level Spell Slot: The size of the building you can affect increases by 20 feet for each spell slot level above 1.