The horn emits a thunderous blast in a 30-foot cone that is audible 600 feet away. Creatures and objects made of glass or crystal have disadvantage on the defensive roll and take double damage instead of 5d6.
You grasp the intricately carved horn; its polished surface reflects light. Blowing into the mouthpiece releases a violent blast, sending shockwaves through the air and shattering nearby glass with fierce force.