Ratfolk Feats
Cheek Pouches Feat 1
Source Pathfinder Player Core 2
Your cheeks are stretchy, and you can store up to four items of light Bulk or less in these cheek pouches. None of these items can have a dimension longer than 1 foot. As long as you have at least one item in your cheek pouches, your speech is noticeably difficult to understand. Placing an item in your cheek pouch or retrieving one is an Interact action. You can empty your mouth with a single action, causing everything you had stored in your cheek pouches to fall to the ground in your square.
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. Ratfolk are humanoids who resemble rats.
Pack Rat Feat 1
Source Pathfinder Player Core 2
You've learned how to cram vast quantities into small spaces. You can fit an additional 50% of the listed Bulk capacity into mundane storage containers or vehicles. For example, you can fit 6 Bulk in a backpack, or 12 Bulk in a chest. This doesn't alter the items' Bulk, nor does it change how much you can store in a magical or extradimensional storage space, such as a spacious pouch.
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. Ratfolk are humanoids who resemble rats.
Rat Familiar Feat 1
Source Pathfinder Player Core 2
You have a pet rat that has become magically bonded to you. You gain a familiar, and this familiar must be a rat. It still gets the benefits of familiar abilities, but its base form remains a rat.
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. Ratfolk are humanoids who resemble rats.
Ratfolk Lore Feat 1
Source Pathfinder Player Core 2
Years of experience among ratfolk communities have made you nimble, and you've learned to run and hide when enemies threaten. You gain the trained proficiency rank in Acrobatics and Stealth. If you would automatically become trained in one of those skills (from your background or class, for example), you instead become trained in a skill of your choice.
You also gain the Additional Lore general feat for Ratfolk Lore.
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. Ratfolk are humanoids who resemble rats.
Ratspeak Feat 1
Source Pathfinder Player Core 2
You can ask questions of, receive answers from, and use the Diplomacy skill with rodents, including beavers, mice, porcupines, rats, and squirrels, but not with other mammals, such as dogs or bats. The GM determines which animals count as rodents.
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. Ratfolk are humanoids who resemble rats.
Skull Creeper Feat 1
Source Pathfinder Lost Omens Ancestry Guide
You wear skulls to demoralize foes. You become trained in Intimidation and gain the Intimidating Glare skill feat. If you're already trained in Intimidation, you instead become trained in a skill of your choice. If you pay 50 gp for a Splendid Skull Mask, the mask grants you a +1 item bonus to Intimidation; its usage is worn (mask).
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. Ratfolk are humanoids who resemble rats.
Tinkering Fingers Feat 1
Source Pathfinder Player Core 2
You're trained in Crafting. If you are trained in Crafting from another source (from your background or class, for example), you instead become trained in a skill of your choice. You can Repair an item without using a repair toolkit without taking the –2 circumstance penalty, improvising tools from whatever you have at hand. You gain a +1 circumstance bonus to Crafting checks to Repair an item when you have a repair toolkit.
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. Ratfolk are humanoids who resemble rats.
Vicious Incisors Feat 1
Source Pathfinder Player Core 2
Your jaws unarmed attack deals 1d6 piercing damage instead of 1d4, and gains the backstabber trait. 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. Ratfolk are humanoids who resemble rats.
Warren Friend Feat 1
Source Pathfinder Lost Omens Ancestry Guide
You're adept at making contact with other ysoki. When you arrive at a new settlement, you automatically find the nearest ratfolk enclave by spending 1 day of downtime searching, provided one exists and its members aren't actively hiding from you. Once you've made contact, you gain a +1 circumstance bonus to Gather Information and Earn Income in the settlement.
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.
DowntimeAn activity with this trait takes a day or more, and can be used only during downtime.
RatfolkA creature with this trait is a member of the ratfolk ancestry. Ratfolk are humanoids who resemble rats.
Warren Navigator Feat 1
Source Pathfinder Player Core 2
You gain the trained proficiency rank in Survival. If you would automatically become trained in Survival (from your background or class, for example), you become trained in another skill of your choice. When you Sense Direction or attempt a roll against a Quandary spell, you get a result one degree of success better than you rolled. You don't take a penalty to Sense Direction when you lack a compass.
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. Ratfolk are humanoids who resemble rats.
Cornered Fury Feat 5
Source Pathfinder Player Core 2
If a foe of a larger size than you critically hits and damages you, that foe is Off-Guard to you for 1 round.
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. Ratfolk are humanoids who resemble rats.
Gnaw 
Feat 5
Source Pathfinder Lost Omens Ancestry Guide
Prerequisites Vicious Incisors
With enough time and determination, you can chew through nearly anything. You deal double your jaws damage to an unattended, inanimate object.
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. Ratfolk are humanoids who resemble rats.
Lab Rat Feat 5
Source Pathfinder Player Core 2
You've spent more than your share of time in an alchemy lab. You have been exposed to a wide variety of alchemical poisons and harmful substances, leaving you with an increased tolerance of their effects. You have a +1 circumstance bonus to saves against poisons and diseases. If you roll a success on your saving throw against a poison or disease, you get a critical success instead.
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. Ratfolk are humanoids who resemble rats.
Plague Sniffer Feat 5
Source Pathfinder Lost Omens Ancestry Guide
Prerequisites longsnout rat heritage
You can sniff out the pungent tang of disease. When you detect a creature by scent, you can also detect if that creature is suffering from a disease at a non-carrier state. If the disease is particularly subtle, you might need to attempt a Perception check against the disease's DC (subject to the GM's discretion).
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. Ratfolk are humanoids who resemble rats.
Quick Stow (Ratfolk) 
Feat 5
Source Pathfinder Player Core 2
Prerequisites Cheek Pouches
Frequency once per round
You Interact to store one item you're holding in your cheek pouches (provided it fits).
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. Ratfolk are humanoids who resemble rats.
Rat Magic Feat 5
Source Pathfinder Player Core 2
There always seems to be a little rat around to carry messages for you. You can cast Animal Messenger once per day as a primal innate spell. When you do, the animal that responds is always a rat. If there are no rats within range, the spell is lost.
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. Ratfolk are humanoids who resemble rats.
Ratfolk Roll 
Feat 5
Source Pathfinder Player Core 2
You roll up into a ball and move up to four times your Speed in a straight line down an incline. If you reach the bottom of the incline or hit an obstacle during this first turn of movement, you stop rolling safely. Otherwise, you automatically keep rolling at this Speed during subsequent turns until you hit the bottom of the incline or an obstacle ends this movement (which can happen in the middle of your turn). You're Slowed 2 each turn after the first that you keep rolling, and if you hit an obstacle on a turn after the first, you and the obstacle both take 4d6 bludgeoning damage and you stop rolling.
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.
MoveAn action with this trait involves moving from one space to another.
RatfolkA creature with this trait is a member of the ratfolk ancestry. Ratfolk are humanoids who resemble rats.
Big Mouth Feat 9
Source Pathfinder Player Core 2
Prerequisites Cheek Pouches
Instead of storing up to four items of Light Bulk in your cheek pouches, you can store up to 1 Bulk worth of items. The maximum size of a given item is unchanged.
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. Ratfolk are humanoids who resemble rats.
Overcrowd Feat 9
Source Pathfinder Player Core 2
As long as you are Small, you can end your movement in the same square as a Small ally. Only two creatures total can share the same space when using this ability or a similar one.
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. Ratfolk are humanoids who resemble rats.
Rat Form 
Feat 9
Source Pathfinder Player Core 2
You can transform into an innocuous-looking rat. You gain the effects of a 1st-rank Pest Form spell, but you must assume the battle form of a Tiny rat.
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.
ConcentrateAn action with this trait requires a degree of mental concentration and discipline.
PolymorphThese effects completely transform the target into a new form. A target can't be under the effect of more than one polymorph at a time. If it comes under the effect of another, the second effect attempts to counteract the first. If it succeeds, it takes effect, and if it fails, the spell has no effect on that target. Any Strikes granted by a polymorph effect are magical. Unless otherwise stated, polymorph spells don't allow the target to take on the appearance of a specific individual creature. If you take on a battle form with a polymorph spell, the special statistics can be adjusted only by circumstance bonuses, status bonuses, and penalties. Unless otherwise noted, the battle form prevents you from casting spells, speaking, and using most manipulate actions that require hands. (If there's doubt about whether you can use an action, the GM decides.) Your gear is absorbed into you; the constant abilities of your gear still function, but you can't activate any items. You lose your Speeds and gain those of the battle form. If a polymorph effect causes you to increase in size, you must have space to expand into or the effect is disrupted.
PrimalThis magic comes from the primal tradition, connecting to the natural world and instinct. Anything with this trait is magical. A creature with this trait is primarily constituted of or has a strong connection to primal magic.
RatfolkA creature with this trait is a member of the ratfolk ancestry. Ratfolk are humanoids who resemble rats.
Uncanny Cheeks Feat 9
Source Pathfinder Player Core 2
You gain the Prescient Consumable and Prescient Planner feats, except that you always withdraw the objects from your cheek pouches. This means the object you retrieve must fit in your cheek pouches; this is generally an item of negligible Bulk unless you also have the Cheek Pouches 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. Ratfolk are humanoids who resemble rats.
Shinstabber Feat 13
Source Pathfinder Player Core 2
Prerequisites Overcrowd
As long as you're Small or smaller, you can end your movement in the same square as an ally of any size. Only two creatures total can share the same space when using this ability or a similar one.
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. Ratfolk are humanoids who resemble rats.
Skittering Sneak Feat 13
Source Pathfinder Player Core 2
You squish, slink, and skitter from cover to cover with great speed and stealth. You can move up to your full Speed when you Sneak.
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. Ratfolk are humanoids who resemble rats.
Warren Digger Feat 13
Source Pathfinder Player Core 2
You've learned to put your sturdy claws to work digging through the earth. You gain a burrow Speed of 15 feet.
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. Ratfolk are humanoids who resemble rats.
Call the Swarm Feat 17
Source Pathfinder Player Core 2
Prerequisites Ratspeak
Frequency once per day
You give a shrill whistle and point, and a massive swarm of rats pours forth from the surrounding terrain to fill a 30-foot burst within 120 feet. The rats scurry over the ground and climb up walls and surfaces, biting and clawing as they deal 6d8 piercing damage to all enemies in the area. The rats continue to swarm in the area for the next minute, dealing 3d8 piercing damage to any enemy that ends its turn in the area and transforming the area into difficult terrain (though the rats allow you and your allies to pass normally). You can Dismiss the effect.
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. Ratfolk are humanoids who resemble rats.
Greater than the Sum Feat 17
Source Pathfinder Player Core 2
You call upon the familial bonds you share with your allies and other ratfolk to become an overwhelming force in battle. You can cast Enlarge as a 6th-rank primal innate spell once per day.
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. Ratfolk are humanoids who resemble rats.