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Familiars

Source Core Rulebook pg. 217 4.0
Familiars are mystically bonded creatures tied to your magic. Most familiars were originally animals, though the ritual of becoming a familiar makes them something more. You can choose a Tiny animal you want as your familiar, such as a bat, cat, raven, or snake. Some familiars are different, usually described in the ability that granted you a familiar; for example, a druid’s leshy familiar is a Tiny plant instead of an animal, formed from a minor nature spirit.

Familiars have the minion trait, so during an encounter, they gain 2 actions in a round if you spend an action to command them. If your familiar dies, you can spend a week of downtime to replace it at no cost. You can have only one familiar at a time.

Familiar and Master Abilities

Each day, you channel your magic into two abilities, which can be either familiar or master abilities. If your familiar is an animal that naturally has one of these abilities (for instance, an owl has a fly Speed), you must select that ability. Your familiar can’t be an animal that naturally has more familiar abilities than your daily maximum familiar abilities.

Click here for the full rules on Familiars.

Familiar Abilities

Accompanist (Advanced Player's Guide pg. 146 2.0): Your familiar helps you perform. Whenever you attempt a Performance check, if your familiar is nearby and can act, it accompanies you with chirps, claps, or its own miniature instrument. This grants you a +1 circumstance bonus, or +2 if you're a master in Performance.
Alchemical Gut (Treasure Vault pg. 51 1.1): Your familiar can act as a bomb coagulant alembic by swallowing the bomb to be affected, which takes two Interact actions from it and one from you. Your familiar regurgitates the concentrated item 1 minute later. If your familiar tries to distill a bomb that's level is higher than your own —1, it instead takes damage as though it were successfully struck with the bomb.
Ambassador (Grand Bazaar pg. 34): Your familiar knows how to act cute or focused on cue, helping you make a good impression. Despite being a minion, your familiar gains 1 reaction at the start of its turns, which it can use only to Aid you on a Diplomacy check to Make an Impression (it still has to prepare to help you as normal for the Aid reaction, which requires it to participate throughout the activity). It automatically succeeds at its check to Aid you with those skills or automatically critically succeeds if you're a master of the skill in question.
Amphibious (Core Rulebook pg. 218 4.0): It gains a swim Speed of 25 feet (or Speed of 25 feet if it already has a swim Speed).
Burrower (Core Rulebook pg. 218 4.0): It gains a burrow Speed of 5 feet, allowing it to dig Tiny holes.
Climber (Core Rulebook pg. 218 4.0): It gains a climb Speed of 25 feet.
Damage Avoidance (Core Rulebook pg. 218 4.0): Choose one type of save. It takes no damage when it rolls a success on that type of save; this doesn't prevent effects other than damage.
Darkeater (Secrets of Magic pg. 229 1.1): Your familiar naturally recovers in the shadows. After spending 10 consecutive minutes in an area of dim light or darkness, your familiar recovers a number of Hit Points equal to half your level. This ability is for a shadow familiar. A shadowcaster, however, can select this ability for any kind of familiar.
Darkvision (Core Rulebook pg. 218 4.0): It gains darkvision.
Elemental (Rage of Elements pg. 42): Your familiar has the elemental trait instead of the animal trait. Choose air, earth, fire, metal, water, or wood. Your familiar gains that trait. The familiar is immune to bleed, paralyzed, poison, sleep, and the element matching its trait. Your familiar must have the resistance familiar ability to select this, unless it's a specific familiar. You can't select this ability if your familiar has a trait other than animal (such as a leshy familiar or an undead familiar).
Fast Movement (Core Rulebook pg. 218 4.0): Increase one of the familiar’s Speeds from 25 feet to 40 feet.
Flier (Core Rulebook pg. 218 4.0): It gains a fly Speed of 25 feet.
Focused Rejuvenation (Advanced Player's Guide pg. 146 2.0): When you Refocus, you generate magical energy that heals your familiar. Your familiar regains 1 Hit Point per level whenever you Refocus.
Gills (Grand Bazaar pg. 34): Your familiar grows a set of gills, allowing it to breathe water in addition to air.
Greater Resistance (Grand Bazaar pg. 34): Your familiar increases the resistance it gains from its resistance familiar ability to 3 + half your level. Your familiar must have the resistance ability to select this.
Independent (Advanced Player's Guide pg. 146 2.0): In an encounter, if you don't Command your familiar, it still gains 1 action each round. Typically, you still decide how it spends that action, but, the GM might determine that your familiar chooses its own tactics rather than performing your preferred action. This doesn't work with valet or similar abilities that require a command, if you're capable of riding your familiar, or similar situations.
Jet (Rage of Elements pg. 42): Your familiar can use bursts of elemental energy or magic to Leap up to 30 feet in any direction, even if that would exceed its normal maximum distance for leaping. The Leap must begin and end on a solid surface capable of supporting the familiar.
Kinspeech (Core Rulebook pg. 218 4.0): It can understand and speak with animals of the same species. To select this, your familiar must be an animal, it must have the speech ability, and you must be at least 6th level.
Lab Assistant (Core Rulebook pg. 218 4.0): It can use your Quick Alchemy action. You must have Quick Alchemy, and your familiar must be in your space. This has the same cost and requirement as if you used it. It must have the manual dexterity ability to select this.
Levitator (Rage of Elements pg. 42): Using magnetism, magic, or other forces, your familiar can float up to 3 feet above solid and liquid surfaces while moving at a Speed of 25 feet. This allows it to ignore difficult terrain and damaging effects related to coming into direct contact with the surface. It typically allows the familiar to also avoid triggering the reactions of hazards that require you to step on them or an attached pressure plate.
Major Resistance (Grand Bazaar pg. 34): Your familiar increases the resistance it gains from its resistance familiar ability to a value equal to your level. To select this, your familiar must have the greater resistance ability and you must be at least 8th level.
Manual Dexterity (Core Rulebook pg. 218 4.0): It can use up to two of its limbs as if they were hands to perform manipulate actions.
Master's Form (Advanced Player's Guide pg. 146 2.0): Your familiar can change shape as a single action, transforming into a humanoid of your ancestry with the same age, gender, and build of its true form, though it always maintains a clearly unnatural remnant of its nature, such as a cat's eyes or a serpent's tongue. This form is always the same each time it uses this ability. This otherwise uses the effects of humanoid form, except the change is purely cosmetic. It only appears humanoid and gains no new capabilities. Your familiar must have the manual dexterity and speech abilities to select this.
Partner in Crime (Advanced Player's Guide pg. 146 2.0): Your familiar is your criminal associate. Despite being a minion, your familiar gains 1 reaction at the start of its turns, which it can use only to Aid you on a Deception or Thievery skill check (it still has to prepare to help you as normal for the Aid reaction). It automatically succeeds at its check to Aid you with those skills or automatically critically succeeds if you're a master of the skill in question.
Plant Form (Advanced Player's Guide pg. 146 2.0): Your plant familiar can change shape as a single action, transforming into a Tiny plant of a type roughly similar to the familiar's nature. This otherwise uses the effects of tree shape. You must have a familiar with the plant trait, such as a leshy, to select this ability.
Poison Reservoir (Advanced Player's Guide pg. 146 2.0): Your homunculus familiar has a reservoir for poison, allowing it to apply an injury poison to an adjacent ally's exposed weapon with a single Interact action. You must supply the poison and instill it into this reservoir using two consecutive Interact actions. You must have a homunculus familiar to select this ability.
Resistance (Advanced Player's Guide pg. 146 2.0): Choose two of the following: acid, cold, electricity, fire, poison, or sonic. Your familiar gains resistance equal to half your level against the chosen damage types.
Scent (Core Rulebook pg. 218 4.0): It gains scent (imprecise, 30 feet).
Second Opinion (Grand Bazaar pg. 34): Your familiar is your academic confidant. Despite being a minion, your familiar gains 1 reaction at the start of its turns, which it can use only to Aid you on a Recall Knowledge skill check for a skill in which it has the skilled familiar ability (it still has to prepare to help you as normal for the Aid reaction). It automatically succeeds at its check to Aid you with those skills or automatically critically succeeds if you're a master of the skill in question. Your familiar must have the skilled ability to select this.
Shadow Step (Secrets of Magic pg. 229 1.1): This ability is for a shadow familiar. A shadowcaster, however, can select this ability for any kind of familiar. Your familiar gains the Shadow Step action. You must be at least 7th level to select this familiar ability for your familiar.
Shadow Step [one-action] (conjuration, shadow, teleportation) Requirements The familiar is in dim light or darkness. Effect The familiar teleports itself up to 30 feet. The destination must be in dim light or darkness and must be within your familiar's line of sight and line of effect. This action has the trait matching your tradition of magic, or occult if you aren't a spellcaster.
Skilled (Advanced Player's Guide pg. 146 2.0): Choose a skill other than Acrobatics or Stealth. Your familiar's modifier for that skill is equal to your level plus your key spellcasting ability modifier, rather than just your level. You can select this ability repeatedly, choosing a different skill each time.
Snoop (Grand Bazaar pg. 34): Your familiar keeps its eyes and ears open, ready to relay every snippet of gossip it catches, helping you gather information. Despite being a minion, your familiar gains 1 reaction at the start of its turns, which it can use only to Aid you on a Diplomacy check to Gather Information (it still has to prepare to help you as normal for the Aid reaction, which requires it to participate throughout the activity). It automatically succeeds at its check to Aid you with those skills or automatically critically succeeds if you're a master of the skill in question.
Speech (Core Rulebook pg. 218 4.0): It understands and speaks a language you know.
Spellcasting (Advanced Player's Guide pg. 146 2.0): Choose a spell in your repertoire or that you prepared today that is at least 5 levels lower than your highest-level spell slot. Your familiar can Cast that Spell once per day using your magical tradition, spell attack modifier, and spell DC. If the spell has a drawback that affects the caster, both you and your familiar are affected. You must be able to cast 6th-level spells using spell slots to select this ability.
Threat Display (Grand Bazaar pg. 34): Your familiar helps you convey wordless threats through body language. Whenever you attempt an Intimidation check to Demoralize a creature, if your familiar is within 30 feet of your target and can act, it accompanies you with snarls, hisses, or raising its hackles. If it can do so, you don't take the normal –4 penalty on the Intimidation check if your target doesn't understand the language you're speaking.
Toolbearer (Advanced Player's Guide pg. 146 2.0): Your familiar can carry a set of tools of up to light Bulk. So long as your familiar is adjacent to you, you can draw and replace the tools as part of the action that uses them as if you were wearing them. Your familiar must have the manual dexterity ability to select this.
Touch Telepathy (Advanced Player's Guide pg. 146 2.0): Your familiar can telepathically communicate with you via touch. If it also has the speech ability, it can telepathically communicate via touch with any creature if they share a language.
Tough (Advanced Player's Guide pg. 147 2.0): Your familiar's maximum Hit Points increase by 2 per level.
Tremorsense (Grand Bazaar pg. 34): Your familiar is keenly aware of any vibrations traveling through a surface. It gains imprecise tremorsense with a range of 30 feet.
Valet (Advanced Player's Guide pg. 147 2.0): You can command your familiar to deliver you items more efficiently. Your familiar doesn't use its 2 actions immediately upon your command. Instead, up to twice before the end of your turn, you can have your familiar Interact to retrieve an item of light or negligible Bulk you are wearing and place it into one of your free hands. The familiar can't use this ability to retrieve stowed items. If the familiar has a different number of actions, it can retrieve one item for each action it has when commanded this way.
Wavesense (Grand Bazaar pg. 34): Your familiar can sense vibrations in the water. It gains imprecise wavesense with a range of 30 feet.

Master Abilities

Cantrip Connection (Core Rulebook pg. 218 4.0): You can prepare an additional cantrip, or if you have a repertoire, instead designate a cantrip to add to your repertoire every time you select this ability; you can retrain it but can’t otherwise change it. You must be able to prepare cantrips or add them to your repertoire to select this.
Extra Reagents (Core Rulebook pg. 218 4.0): Your familiar grows extra infused reagents on or in its body. You gain an additional batch of infused reagents. You must have the infused reagents ability to select this ability.
Familiar Focus (Core Rulebook pg. 218 4.0): Once per day, your familiar can use 2 actions with the concentrate trait to restore 1 Focus Point to your focus pool, up to your usual maximum. You must have a focus pool to select this.
Innate Surge (Advanced Player's Guide pg. 147 2.0): Once per day, you can draw upon your familiar's innate magic to replenish your own. You can cast one innate spell gained from an ancestry feat that you have already cast today. You must still Cast the Spell and meet the spell's other requirements.
Lifelink (Core Rulebook pg. 218 4.0): If your familiar would be reduced to 0 HP by damage, as a reaction with the concentrate trait, you can take the damage. If you do, you take all the damage and your familiar takes none. However, special effects that would occur due to that damage (such as snake venom) still apply to your familiar.
Recall Familiar (Grand Bazaar pg. 34): You can summon your familiar to your side. Once per day, you can use a 3-action activity, which has the concentrate trait, to teleport your familiar to your space. Your familiar must be within 1 mile or the attempt to summon it fails. This is a conjuration and teleport effect.
Restorative Familiar (Grand Bazaar pg. 34): Once per day, your familiar can use 2 actions with the concentrate trait to give up some of its animating energy and heal you. It must be in your space to do so. You restore a number of Hit Points equal to 1d8 times half your level (minimum 1d8).
Share Senses (Advanced Player's Guide pg. 147 2.0): Once every 10 minutes, you can use a single action with the concentrate trait to project your senses into your familiar. When you do, you lose all sensory information from your own body, but can sense through your familiar's body for up to 1 minute. You can Dismiss this effect.
Spell Battery (Core Rulebook pg. 218 4.0): You gain one additional spell slot at least 3 levels lower than your highest-level spell slot; you must be able to cast 4th-level spells using spell slots to select this master ability.
Spell Delivery (Core Rulebook pg. 218 4.0): If your familiar is in your space, you can cast a spell with a range of touch, transfer its power to your familiar, and command the familiar to deliver the spell. If you do, the familiar uses its 2 actions for the round to move to a target of your choice and touch that target. If it doesn’t reach the target to touch it this turn, the spell has no effect.
Tattoo Transformation (Grand Bazaar pg. 34): Your familiar can transform into a tattoo you carry on your flesh. When transformed into a tattoo, the familiar looks like a colorful and stylized version of itself and can't act except to turn back into a familiar. It isn't affected by area effects and must be targeted separately to affect it, which requires knowledge that it's a creature. This means you and your allies can heal or assist the familiar while most enemies stay unaware of its true nature. Creatures must attempt a DC 20 Perception check to Seek to realize a tattoo is actually a familiar (which few foes will try). Your familiar can still communicate its feelings empathically. Transforming into a tattoo or back to familiar form is a 1-minute activity that has the concentrate trait.