Words of Thunder

When uttered, the words of thunder they rise to a tremendous pitch and wash outward as a tangible boom of sound in a 60-foot radius centered on you. All other creatures in the sphere with 30 or fewer hit points are permanently deafened and are incapacitated until the end of your next turn, with no saving throw. Creatures with 31 to 60 hit points are deafened for 1 minute, but not incapacitated. Creatures with more than 60 hit points are unaffected.

You can cast words of thunder even if you are in a zone of magical silence. In this case, the spell destroys the silence effect but has no effect on creatures.

The deafness can be healed by greater restoration, heal, or wish.