bone chains

You choose one creature within range that you can see. Bones rise from the ground and grasp the target. The target must make a Strength saving throw. On a failed save, the target is restrained and takes 1d6 necrotic damage at the start of each of its turns. On a successful save, the target takes no damage and isn't restrained.

A restrained creature can use its action to make a Strength (Athletics) check against your spell save DC, freeing itself on a success. When it succeeds, the spell ends for that creature.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the necrotic damage increases by 1d6 for each slot level above 1st.