Voidbeam

A pitch black beam of shadow blasts down in a 5-foot-radius, 40-foot-high cylinder centered on a point within range. Until the spell ends, darkness fills the cylinder.

When a creature enters the spell’s area for the first time on a turn or starts its turn there, it is engulfed in black flames that cause chilling pain, and it must make a Constitution saving throw. It takes 2d10 cold damage on a failed save, or half as much damage on a successful one.

A creature that fails the saving throw moves at half speed until the start of their next turn

On each of your turns after you cast this spell, you can use an action to move the beam up to 60 feet in any direction.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d10 for each slot level above 2nd.