Void Collapse

You swirl Void energies around a target of your choice within range, the target makes a Dexterity saving throw as you collapse them, taking 4d6 Necrotic damage and becoming Restrained for 1d4 rounds on a failed save, and taking half damage only on a successful save.

At Higher Levels. When this spell is cast at 3rd level or higher, the damage increases by 1d6 and the Restrained duration increases by 1 for each spell slot level above 2nd level.