Wall of Darkness

A wall of opaque darkness appears at a point you choose within range. You can make the wall up to 60 feet long, 20 feet high, and 1 foot thick, or a ringed wall up to 20 feet in diameter, 20 feet high, and 1 foot thick. The wall blocks line of sight, and if you make a ringed wall, the enclosed area fills with magical darkness.

Whenever a creature enters the wall's area or begins its turn there, it must make a Constitution saving throw. On a failed save, the creature takes 4d8 necrotic damage, and is blinded for 1 minute. On a successful save, it takes half as much damage and isn’t blinded. A blinded creature can make a Constitution saving throw at the end of each of its turns, ending the effect on itself on a success.

Until the spell ends, you can use an action to launch a shadowy tentacle from the wall at one creature you can see within 60 feet of it. Make a ranged spell attack. On a hit, the target takes 4d8 necrotic damage. Whether you hit or miss, reduce the length of the wall by 10 feet. If the wall’s length drops to 0 feet, the spell ends.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d8 for each slot level above 5th.