Chains of The Depths

Six abyssal chains emerge from symbols below a creature. The chains wrap around their body, eroding their flesh where they touch. The target must make a Wisdom saving throw. On a failed save, the target takes 10d8 necrotic damage becomes restrained for the duration. At the end of each of the target’s turns before the spell ends, the target must succeed on a Wisdom saving throw or take 6d8 necrotic damage. On a successful save, the spell ends.

When used at higher levels, the spell does 1d8 more damage on both the initial hit and secondary.