You can alter your voice to emit a high-pitched, piercing scream that can deafen nearby creatures.

MP Cost: 2

Benefit: Once per day you can emit a piercing howl, which can be heard at a range of up to 10 miles. All creatures with to ability to hear must make a Reflex save (DC 15) or be deafened for 1d10 minutes. Any crystal or glass objects within 100 feet of you when you howl automatically shatter.