Celestial Beacon

You create a brilliant nova of celestial energy at a point you can see within range. The nova sheds bright light in a 40-foot radius and dim light for an additional 40 feet. Any creature that starts its turn within 10 feet of the bright light of the nova or enters that area, takes 4d8 radiant damage. Additionally, any hostile creature that starts its turn within the bright light or enters it, must succeed on a Constitution saving throw, or take 4d8 radiant damage on a failed save, or half as much damage on a successful one.

Any creature outside the bright light has advantage on attack rolls against creatures within it. Creatures cannot benefit from being invisible whilst being inside the bright light.

Casting this spell at 5th level or higher increseases the damage for both instances by 1d8 per level above 4th.