Steam Whistle

8th-level evocation (clockwork)

Casting time: 1 action

Range: Self (30-foot radius)

Target:

Components: V, S, M (a small brass whistle)

Duration: Instantaneous

Classes:

Subclasses:

You open your mouth and unleash a shattering scream. All other creatures in a 30-foot radius take 10d10 thunder damage and are deafened for 1d8 hours. A successful Constitution saving throw halves the damage and reduces deafness to 1d8 rounds.