Void Bomb

You point at a location within range, and a pitch-black, 5-foot-diameter ball of void darkness streaks there and explodes in a 80-foot-radius sphere. Each creature in that area takes 12d20 force damage, and is blinded until the effect is dispelled. While under this effect, a creature cannot see more than 4 feet in front of them, and has disadvantage on saving throws, damage rolls, and the like. A creature under these effects may only be cured after being targeted and hit by a Dispel Magic of 9th level or higher.

At Higher Levels. When you cast this spell using a spell slot of 9th level, the initial damage increases by 3d20.