A method for "deleting" hostile beings completely, by also attacking their non-existing(ghost) side. May be found to be highly theoretical, but it is a demonstration of the connection between matter and anti-matter. (Something which was destroyed will sometimes come back again because its anti-matter form was not removed.)

It will (likely) manifest in the form of a talking cat wearing a coat so that you can interact with the tool easily, but it will be adapted to your preferred interface upon install.