Mordenkainen's Lost Notebook

Gloom

4-level Transmutation

You cause a 120-foot radius of gloom to cover an area centered on a point you can see within range. The area suppresses daylight and other light sources, causing a twilight effect. Areas within the gloom where light sources are suppressed are considered lightly obscured for the duration. Creatures with sunlight sensitivity do not suffer penalties while within the area and nonmagical light sources have their illumination reduced to a 5-foot radius. Spells of a lower level than the spell slot used to cast this spell that produce a light effect are dispelled when contacting the area or fail if cast within it.
At higher levels: At higher levels: When you cast this spell using a spell slot of 5th level or higher, the radius of the effect increases by 10 feet for every slot level above 4th.