Forsaken Chains

1st-level evocation
Casting time: 1 action
Range: 120 feet
Target: a creature within range
Components: V, S, M (a length of chain)
Duration: Concentration, up to 1 minute
Classes: Warlock
Subclasses:

You gesture at a creature within range and three ghostly manacles and chains spring from the ground, latching onto the creature. Each time the creature moves 5 feet, one of the chains breaks and the creature takes 1d12 necrotic damage.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, two additional chains latch onto the creature per slot level above 1st.