Chains of Camur

Spectral chains spring forth binding a target of large or smaller to a chain held by the caster. The target must make an intelligence saving throw or be restrained for the duration. Any target restrained by the chains may use an action at the end of their turn to repeat the saving throw freeing themselves and ending the spell. The caster can use a bonus action on their turn to inflict 4d8 necrotic damage to the restrained creature and regain that number in hit points. 

Any creature restrained by these chains for three rounds dies at the end of their turn. If the target was humainoid, it rises as a white under the control of the caster until the next dawn. The spell ends early if for any reason the distance between the caster and the restrained creature exceeds 30 ft.