Pitborn Feat 1
Source Pathfinder Player Core
Your blood bears the mark of a demon, a living embodiment of sin from the fetid depths of the Outer Rifts. Demonic power pulses through your veins and manifests in a different way for each pitborn, whether you have webbed fingers and thrive in the water, large hands capable of wrestling larger foes, or some other manifestation. You are trained in Athletics. If you were already trained in Athletics (from your background or class, for example), you instead become trained in a skill of your choice.
You also gain any one common 1st-level skill feat with a prerequisite of trained in Athletics, as reflects the manifestation of your fiendish blood.
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.
LineageA feat with this trait indicates a character's descendance from a particular type of creature. You can have only one lineage feat. You can select a lineage feat only at 1st level, and you can't retrain into or out of these feats.
NephilimA creature with this trait has the nephilim versatile heritage. Nephilim are planar scions descended from immortal beings from other planes. An ability with this trait can be used or selected only by nephilim.