Twigs and Twine Cloning Spell

Twig dolls are human-shaped dolls made from twigs.

Overview
In Twigs & Twine & Tasha Banes, an unnamed borrower witch uses her demon-given magic to recreate deceased people. She first kills her intended targets, removes their hearts and puts the heart inside a human-shape twig doll. Using her magical ring and a spell book, the twig doll takes the form of the heart's owner.

The recreated person has the exact same memories, emotions and physical appearance as the original person. The two main differences are that the twig doll versions are obedient to whoever cast the spell and cannot be killed. Any damage done to their physical bodies can either be fixed.

The only known method to destroy these recreations is to kill the spell caster. The spell caster's death will cause the twig dolls to dissolve, returning to a pile of twigs.

Trivia

 * The twig doll's ability to have emotions indicates that it may possess a soul.