Chains of the Damned

Choose a point that you can see within range. You create a 10-foot-radius sphere tethered to the Shadowfell from which dark ethereal chains lash out at creatures within the radius.

Each creature within the radius Must succeed on a Dexterity saving throw against your spell save DC. On a fail, the creature is restrained and receives 3d6 necrotic damage. On a successful save, the creature takes half as much damage and is not restrained. If a creature is restrained, it may use its action on its turn to make a Strength saving throw against being restrained.

Any creature that starts its turn within the spells radius takes 1d6 necrotic damage.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the initial damage increases by 1d6 for each slot level above 3rd.