Vicious Incisors Feat 1
Source Pathfinder Advanced Player's Guide
You've let your incisors grow long enough to serve as formidable weapons. You gain a jaws unarmed attack that deals 1d6 piercing damage. Your jaws are in the brawling group and have the finesse and unarmed traits. Unlike most creatures, you can file down your teeth and regrow them later on, enabling you to select this feat at any level, and to retrain into and out of this feat.
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.
RatfolkA creature with this trait is a member of the ratfolk ancestry.