A simple rod with a simple purpose.
When the rod is pointed and activated with the switches on it the rod shoots a beam of concentrated karmic energy out of it. Should this energy hit someone the target's negative karma energy will be brought out immediately bring karmic punishment on them.
This rod is primarily used for combat as it is useful against being who have already stored up large amount of negative karma to themselves as the effect will be more intense the greater their negative karma balance is.