The Amazing Mr. Mystic’s Half Saw

You touch a willing creature. For the duration of the spell, the creature takes no damage and feels no pain from weapon attacks made by you that deal slashing damage. If you do make a weapon attack that deals slashing damage, the sharp edge of the instrument easily cuts through the creature with no resistance, and body parts can be severed without the possibility of death or permanent damage. While separated, a creature has control over all parts of their body, but they probably won't be able to use them as well as if they were fully put together. The creature’s body returns to normal as if nothing had happened when you use an action to clap twice causing the creature to reform or when the spell ends.