Just thought of something to fit my idea of a supervillain rp, since you like guns so much. We would basically be godlike super high level characters. So, take a repeating crossbow that can hold a clip of 20, which your character can fire at high speed (like 2~4 times a second), which fires magic energy crossbow bolts instead of physical ones. Boom! Fantasy laser gun! :P I don't see why it couldn't happen considering we'd be at godlike levels of power.