Silence

Action + 10 minutes (Ritual) • 120ft/20ft
V, S • Concentration • 10min
For the duration, no sound can be created within
or pass through a 20-foot-radius sphere centered
on a point you choose within range. Any creature
or object entirely inside the sphere is immune to
thunder damage, and creatures are deafened
while entirely inside it. Casting a spell that
includes a verbal component is impossible there.