Prompt the Muse #38 - Speculative Writing Prompt

Image: Warrior with Gun

Your main character wields an unusual and powerful weapon.  Choose an item that is unexpected for the genre (i.e. if fantasy, no swords or wands, if sci-fi no ray guns or light sabers, etc.)  Take 150 words to describe this weapon, what makes it strange, and what it can do.

Image Credit:  Warrior with Gun, Wikimedia Commons, Public Domain