ThunderburstFocus 3
Source Pathfinder Player Core 2
Cast

Area 20-foot burst
Range 100 feet
Saving Throw Fortitude
You create a powerful blast of air and a loud peal of thunder, dealing 2d6 bludgeoning damage and 2d6 sonic damage. Each creature in the area must attempt a Fortitude save.
Critical Success The creature is unaffected.
Success The creature takes half damage.
Failure The creature takes full damage and is Deafened for 1 minute.
Critical Failure The creature takes double damage and is deafened for 1 hour.
Heightened (+2) Each type of damage increases by 2d6, and the area increases by 5 feet.
Traits
Something of uncommon rarity requires special training or comes from a particular culture or part of the world. Some character choices give access to uncommon options, and the GM can choose to allow access for anyone. Less is known about uncommon creatures than common creatures. They typically can't be summoned. The DC of Recall Knowledge checks related to these creature is increased by 2.
AirEffects with the air trait either manipulate or conjure air. Those that manipulate air have no effect in a vacuum or an area without air. Creatures with this trait consist primarily of air or have a connection to magical air.
ConcentrateAn action with this trait requires a degree of mental concentration and discipline.
FocusFocus spells are a special type of spell attained directly from a branch of study, from a deity, or from another specific source. You can learn focus spells only through special class features or feats, rather than choosing them from a spell list. Furthermore, you cast focus spells using a special pool of Focus Pointsβyou can't prepare a focus spell in a spell slot or use your spell slots to cast focus spells; similarly, you can't spend your Focus Points to cast spells that aren't focus spells.
ManipulateYou 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.
OracleThis indicates abilities from the oracle class.
SonicAn 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.