This is my Boomstick

Some times, the patrol forces in the large cities of Zolarion need more firepower than crossbows provide, but don't have time to return to barracks to get a mage. Wands of fireball are expensive, and dangerous in the hands of the sometimes unreliable hands of Eastern Solaria's peacekeepers. Enter the boomstick! Depending on anticipated needs, a patrol may carry one or two of these portable artillery items -- enough to make a difference in a quick siege, but not so much firepower to alter the balance of power between the criminal syndicates and the law.

A 'Boomstick' is a single use wand. When pointed at a square and the command word ('Boom') is uttered, a fireball will erupt in that square, dealing 3d6 damage in a 10' radius. The wand will the disintegrate into dust, its magic spent.