Ahh... The Proton Pack, this baby is what kept the Ghostbusters in business. It fires a beam of protons. Imagine the Epic Win wielding one of these on the back of a magical Leopluradon.
It’s not considered as a Weapon (at least not for Godmother, as she does not turn it into a Rose)
One of the few things that can kill a ghost. The other being a weapon of mass destruction.