Shackles of the Soul

Celestial (gravitomancy) or Elemental (dark) 4th level

Casting Time: 1 action
Range: 90 feet
Components: V, S
Duration: Concentration, up to 1 minute

You unleash the power of your celestial power by casting chains on a target you can see within range of the spell. That target must make a Strength saving throw. On a failure, it takes 4d6 bludgeoning damage and becomes Restrained, suffering disadvantage on Strength saves. Each turn, the target can make a new save. If it succeeds, it breaks free from the gravitational force holding it.

At Higher Levels. When you cast this spell using mana points equivalent to a 5th-level spell or higher, the damage increases by 1d6, and you can bind an additional target for each spell level above 4th level. At 5th level, the blunt damage becomes crushing.