The Archive of Esoteric Secrets

Peal

4-level Evocation

You place a mark on a creature that you can see within range. At the start of the creature's next turn, the mark detonates in a peal of thunderous force. Each creature within 15 feet of the target, including the target must succeed on a Constitution saving throw or take 4d12 thunder damage, and be deafened for 1 minute.   A creature that succeeds on the saving throw takes half damage and is not deafened.   A creature that is deafened can repeat the saving throw at the start of each of their turns to end the effect.
At higher levels: When you cast this spell using a spell slot of 5th-level or higher, the damage dealt increases by 1d12 for each spell slot level expended above 4th.