Trumpet of Blasting

The hollyphant blows air through its trunk, creating a trumpet sound that can be heard out to a range of 600 feet. The trumpet also creates a 30-foot cone of energy that has the following effect.

Each creature in the cone must make a DC 14 Constitution saving throw. On a failed save, a creature takes (5d6) thunder damage and is deafened for 1 minute. On a successful save, a creature takes half as much damage and isn’t deafened. Nonmagical objects in the cone that aren’t being held or worn take (10d6) thunder damage.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.