Celestial Window

You summon a panel of incorporeal, celestial energy in the form of a golden stained glass window forming a depiction of your choice. Summon 1 panel, 5 feet wide and 10 feet tall, it occupies the border of square that you can see. A hostile creature takes 4d6 radient damage when it passes through the spell’s area. Creatures of your choice instead heal for 1d6+mod, a maximum of once per creature per cast.