Void wall

You create a wall of Darkness on a solid surface within range. You can make the wall up to 90 feet long, 30 feet high, and 1 foot thick, or a ringed wall up to 30 feet in diameter, 30 feet high, and 1 foot thick. The wall is opaque and lasts for the duration.

When the wall appears, each creature in its area makes a Constitution saving throw, taking 6d8 Force damage on a failed save or half as much damage on a successful one.

One side of the wall, selected by you when you cast this spell, deals 1d8 Necrotic damage to each creature that ends its turn within 15 feet of that side or inside the wall.This damage increases by 1d8 when for every 5 feet closer you are to the wall. When a creature enters the space within 15 feet of the wall for the first time on a turn or ends its turn there, It must make a strength saving throw or move 5 feet towards the wall. A creature makes a Constitution saving throw when it enters the wall for the first time on a turn or ends its turn there, taking 6d8 Force damage on a failed save or half as much damage on a successful one. 

A creature cannot see through the sphere using dark vision or any other senses. While inside the sphere, a creature has the Blinded condition.

Using a Higher-Level Spell Slot. The Force damage increases by 1d8  and the range of the necrotic damage increases by 5 feet for each spell slot level above 4.