Eclipse

An image of a blackened sun appears 100ft above you, a shroud of darkness obscures light within a 30ft radius, 100ft high cylinder centred on yourself. The image of the black sun will appear on the ceiling if it is lower than 100ft. For the duration, bright light becomes dim light, dim light becomes darkness, and darkness becomes magical darkness within the sphere. You and a number of creatures you choose up to your spellcasting modifier can see normally in darkness and magical darkness up to 60ft within the cylinder. 

When you cast the spell, choose a creature within the cylinder. A silvery moonbeam of pale light shines down on the creature until the end of your turn, the creature is engulfed in ghostly flames that cause searing pain, and it must make a Constitution saving throw. The creature takes 5d10 radiant damage on a failed save, or half as much damage on a successful one. On each of your turns until the spell ends, you can use your action to call down the moonbeam in this way again, targeting the same creature or a different one.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the you may target an additional creature with the moonbeam for each two slot levels above 5th.