B.O.O.M. Ammunition

The B.O.O.M. (Big Oh****, Ohgod, Monstasplosion) Ammunition is a marvel of science and magic created by the sorcerer Ronan. This ammunition reduces the range of the attack to 30 feet unless it was already lower. Whether the ammunition hits the target or not, everything with 10 feet must make a DC 12 dexterity saving throw, taking 2d6 fire damage on a failure, and taking half damage on a success. All object not being worn or carried catch on fire. 

Notes: Damage: Fire