Dome of Silence

An invisible dome encompasses a 10-foot-radius around you, creating a damper for any sound traveling into or out of the area. Creatures can pass through the dome normally, but sound does not. You and any creatures in the dome can hear one another, but not outside. Likewise, any noise made in the dome of silence cannot be heard outside of it.

Any attack that deals thunder damage dispels the dome, but the dome reduces that damage to any creature inside of it by half.