SFS Standard Biting Corpsefolk Feat 1

Source Guilt of the Grave World pg. 112
A transformation after death twisted your body, elongating your teeth into fangs or sharpening your appendages into claws. When you select this feat, you gain one of the following unarmed attacks of your choice: claw or jaws. Both of these attacks are in the brawling weapon group and have the listed damage die and traits.

Claw 1d6 slashing (agile, finesse, unarmed)
Jaws 1d6 piercing (grapple, unarmed)

At 5th level, whenever you get a critical hit with one of these attacks, you get its critical specialization effect.
Special You can select this feat two times. Each time you do, select a different attack from the options listed above.

Biting Corpsefolk Leads To…

Traits

Corpsefolk:A creature with this trait has the corpsefolk versatile heritage. An ability with this trait can be used or selected only by corpsefolk.
Lineage:A 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.