"Grappeling gun"

The "grappling" gun is a intricate gun with a magic rope attached and a metal grappling hook attached to the end. As an action  you can shoot out the magic rope either at a surface or creatures up to 80 ft away. If you shoot it at a surface that is not flat it will attach to that surface and pull you their. If you shoot it at creatures make an attack roll using dexterity to grapple them, you have proficiency with it if you have proficiency with thieve's tools, however if you target more than one creature you get a minus 1 to the attack for every extra target. Also while you have creatures grappled you can use a bonus action to pull them up to 5 ft away from you.

Notes: Movement, Combat