Steam Whistle

8th-level · Evocation

Casting Time 1 action

Range Self (30-foot radius)

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

Duration Instantaneous

Classes Sorcerer, Warlock, Wizard

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

Source: Deep Magic 5e · OGL/Open