Dragon Spit Feat 1
Source Pathfinder Lost Omens: Character Guide
Prerequisites Tian-Dan ethnicity
Many Tian-Dan claim to have dragon blood in their veins, and in your case, this is true-you can spit energy, and you might have an especially visible sign of your draconic heritage. Choose one of the following cantrips: Acid Splash, Electric Arc, Produce Flame, or Ray of Frost. You can cast this spell as an innate arcane spell at will, and when you cast it, the spell's energy emerges from your mouth.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
HumanA creature with this trait is a member of the human ancestry. Humans are a diverse array of people known for their adaptability. An ability with this trait can be used or selected only by humans.