Area (continued) 20-foot burst plus additional 5-foot burst
You fire a booming, fiery explosion followed by a salvo of smaller blasts, each cracking the air with the sound of thunder. You create a 20-foot burst and 1d4 Additional 5-foot bursts additional 5-foot bursts each within the range and within 20 feet of another burst. None of the bursts can intersect. Each creature caught in at least one of these bursts takes 6d8 fire damage and 6d4 sonic damage (basic Fortitude save). On a failed save, a creature is also Deafened for 1 minute.
Heightened (+1) The fire damage increases by 1d8 and the sonic damage increases by 1d4.
Traits
An action with this trait requires a degree of mental concentration and discipline.
Effects with the fire trait deal fire damage, or either conjure or manipulate fire. Those that manipulate fire have no effect in an area without fire. Creatures with this trait consist primarily of fire or have a connection to magical fire.
You must physically manipulate an item or make gestures to use an action with this trait. Creatures without a suitable appendage can't perform actions with this trait. Manipulate actions often trigger reactions.
An effect with the sonic trait functions only if it makes sound, meaning it has no effect in an area of silence or in a vacuum. This is different from an auditory spell, which is effective only if the target can hear it. A sonic effect might deal sonic damage.