Index of Glossary by Type - Ability

Name Type Text
Monk AC Bonus Ability When unarmored and unencumbered, the monk adds his Wisdom bonus (if any) to his AC and his CMD. In addition, a monk gains a +1 bonus to AC and CMD at 4th level. This bonus increases by 1 for every four monk levels thereafter, up to a maximum of +5 at 20th level. These bonuses to AC apply even against touch attacks or when the monk is flat-footed. He loses these bonuses when he is immobilized or helpless, when he wears any armor, when he carries a shield, or when he carries a medium or heavy load.
Ninja AC Bonus Ability

A ninja is highly trained at dodging blows, and she has a sixth sense that lets her avoid even unanticipated attacks. When unarmored and unencumbered, a ninja adds her Wisdom bonus (if any) to her Armor Class. This ability does not stack with the monk’s AC bonus ability (a ninja with levels of monk does not add the bonus twice). In addition, a ninja gains a +1 bonus to AC at 5th level. This bonus increases by 1 for every five ninja levels thereafter (+2 at 10th, +3 at 15th, and +4 at 20th level).

These bonuses to AC apply even against touch attacks or when a ninja is flat-footed. The character loses these bonuses when she is immobilized or helpless, when she wears any armor, when she carries a shield, or when she carries a medium or heavy load.

Acclimated Ability

The creatures are automatically acclimated to life at high altitude. They don’t take the penalties for altitude described in the Mountain Travel section. Unlike other denizens of the mountains, The creatures don’t lose their acclimation to high altitude even if they spend a long time at a lower elevation.

Arcane Bond Ability At 1st level, wizards form a powerful bond with an object or a creature. This bond can take one of two forms: a familiar or a bonded object. A familiar is a magical pet that enhances the wizard's skills and senses and can aid him in magic, while a bonded object is an item a wizard can use to cast additional spells or to serve as a magical item. Once a wizard makes this choice, it is permanent and cannot be changed. Rules for bonded items are given below, while rules for familiars are at the end of this section. Wizards who select a bonded object begin play with one at no cost. Objects that are the subject of an arcane bond must fall into one of the following categories: amulet, ring, staff, wand, or weapon. These objects are always masterwork quality. Weapons acquired at 1st level are not made of any special material. If the object is an amulet or ring, it must be worn to have effect, while staves, wands, and weapons must be wielded. If a wizard attempts to cast a spell without his bonded object worn or in hand, he must make a concentration check or lose the spell. The DC for this check is equal to 20 + the spell's level. If the object is a ring or amulet, it occupies the ring or neck slot accordingly. A bonded object can be used once per day to cast any one spell that the wizard has in his spellbook and is capable of casting, even if the spell is not prepared. This spell is treated like any other spell cast by the wizard, including casting time, duration, and other effects dependent on the wizard's level. This spell cannot be modified by metamagic feats or other abilities. The bonded object cannot be used to cast spells from the wizard's opposition schools (see arcane school below). A wizard can add additional magic abilities to his bonded object as if he has the required Item Creation Feats and if he meets the level prerequisites of the feat. For example, a wizard with a bonded dagger must be at least 5th level to add magic abilities to the dagger (see Craft Magic Arms and Armor feat). If the bonded object is a wand, it loses its wand abilities when its last charge is consumed, but it is not destroyed and it retains all of its bonded object properties and can be used to craft a new wand. The magic properties of a bonded object, including any magic abilities added to the object, only function for the wizard who owns it. If a bonded object's owner dies, or the item is replaced, the object reverts to being an ordinary masterwork item of the appropriate type. If a bonded object is damaged, it is restored to full hit points the next time the wizard prepares his spells. If the object of an arcane bond is lost or destroyed, it can be replaced after 1 week in a special ritual that costs 200 gp per wizard level plus the cost of the masterwork item. This ritual takes 8 hours to complete. Items replaced in this way do not possess any of the additional enchantments of the previous bonded item. A wizard can designate an existing magic item as his bonded item. This functions in the same way as replacing a lost or destroyed item except that the new magic item retains its abilities while gaining the benefits and drawbacks of becoming a bonded item.
Arcane School Ability A wizard can choose to specialize in one school of magic, gaining additional spells and powers based on that school. This choice must be made at 1st level, and once made, it cannot be changed. A wizard that does not select a school receives the universalist school instead. A wizard that chooses to specialize in one school of magic must select two other schools as his opposition schools, representing knowledge sacrificed in one area of arcane lore to gain mastery in another. A wizard who prepares spells from his opposition schools must use two spell slots of that level to prepare the spell. For example, a wizard with evocation as an opposition school must expend two of his available 3rd-level spell slots to prepare a fireball. In addition, a specialist takes a –4 penalty on any skill checks made when crafting a magic item that has a spell from one of his opposition schools as a prerequisite. A universalist wizard can prepare spells from any school without restriction. Each arcane school gives the wizard a number of school powers. In addition, specialist wizards receive an additional spell slot of each spell level he can cast, from 1st on up. Each day, a wizard can prepare a spell from his specialty school in that slot. This spell must be in the wizard's spellbook. A wizard can select a spell modified by a metamagic feat to prepare in his school slot, but it uses up a higher-level spell slot. Wizards with the universalist school do not receive a school slot.
Bardic Distraction Ability At 1st level, a bard can use his performance to counter magic effects that depend on sight. Each round of the distraction, he makes a Perform (act, comedy, dance, or oratory) skill check. Any creature within 30 feet of the bard (including the bard himself) that is affected by an illusion (pattern) or illusion (figment) magical attack may use the bard’s Perform check result in place of its saving throw if, after the saving throw is rolled, the Perform check result proves to be higher. If a creature within range of the distraction is already under the effect of a non-instantaneous illusion (pattern) or illusion (figment) magical attack, it gains another saving throw against the effect each round it sees the distraction, but it must use the bard’s Perform check result for the save. Distraction does not work on effects that don’t allow saves. Distraction relies on visual components.
Bardic Fascinate Ability At 1st level, a bard can use his performance to cause one or more creatures to become fascinated with him. Each creature to be fascinated must be within 90 feet, able to see and hear the bard, and capable of paying attention to him. The bard must also be able to see the creatures affected. The distraction of a nearby combat or other dangers prevents the ability from working. For every three levels a bard has attained beyond 1st, he can target one additional creature with this ability. Each creature within range receives a Will save (DC 10 + 1/2 the bard’s level + the bard’s Cha modifier) to negate the effect. If a creature’s saving throw succeeds, the bard cannot attempt to fascinate that creature again for 24 hours. If its saving throw fails, the creature sits quietly and observes the performance for as long as the bard continues to maintain it. While fascinated, a target takes a –4 penalty on skill checks made as reactions, such as Perception checks. Any potential threat to the target allows the target to make a new saving throw against the effect. Any obvious threat, such as someone drawing a weapon, casting a spell, or aiming a weapon at the target, automatically breaks the effect. Fascinate is an enchantment (compulsion), mind-affecting ability. Fascinate relies on audible and visual components in order to function.
Bardic Knowledge Ability A bard adds half his class level (minimum 1) to all Knowledge skill checks and may make all Knowledge skill checks untrained.
Bardic Performance Ability A bard is trained to use the Perform skill to create magical effects on those around him, including himself if desired. He can use this ability for a number of rounds per day equal to 4 + his Charisma modifier. At each level after 1st a bard can use bardic performance for 2 additional rounds per day. Each round, the bard can produce any one of the types of bardic performance that he has mastered, as indicated by his level. Starting a bardic performance is a standard action, but it can be maintained each round as a free action. Changing a bardic performance from one effect to another requires the bard to stop the previous performance and start a new one as a standard action. A bardic performance cannot be disrupted, but it ends immediately if the bard is killed, paralyzed, stunned, knocked unconscious, or otherwise prevented from taking a free action to maintain it each round. A bard cannot have more than one bardic performance in effect at one time. At 7th level, a bard can start a bardic performance as a move action instead of a standard action. At 13th level, a bard can start a bardic performance as a swift action. Each bardic performance has audible components, visual components, or both. If a bardic performance has audible components, the targets must be able to hear the bard for the performance to have any effect, and such performances are language dependent. A deaf bard has a 20% change to fail when attempting to use a bardic performance with an audible component. If he fails this check, the attempt still counts against his daily limit. Deaf creatures are immune to bardic performances with audible components. If a bardic performance has a visual component, the targets must have line of sight to the bard for the performance to have any effect. A blind bard has a 50% chance to fail when attempting to use a bardic performance with a visual component. If he fails this check, the attempt still counts against his daily limit. Blind creatures are immune to bardic performances with visual components.
Class Benefit Ability This is a generic ability benefit for use on the character sheet.
Feat Benefit Ability This is a generic ability benefit for use on the character sheet.
Racial Benefit Ability This is a generic ability benefit for use on the character sheet.
Channel Energy Ability Regardless of alignment, any cleric can release a wave of energy by channeling the power of her faith through her holy (or unholy) symbol. This energy can be used to cause or heal damage, depending on the type of energy channeled and the creatures targeted. A good cleric (or a neutral cleric who worships a good deity) channels positive energy and can choose to deal damage to undead creatures or to heal living creatures. An evil cleric (or a neutral cleric who worships an evil deity) channels negative energy and can choose to deal damage to living creatures or to heal undead creatures. A neutral cleric of a neutral deity (or one who is not devoted to a particular deity) must choose whether she channels positive or negative energy. Once this choice is made, it cannot be reversed. This decision also determines whether the cleric can cast spontaneous cure or inflict spells (see spontaneous casting). Channeling energy causes a burst that affects all creatures of one type (either undead or living) in a 30-foot radius centered on the cleric. The amount of damage dealt or healed is equal to 1d6 points of damage plus 1d6 points of damage for every two cleric levels beyond 1st (2d6 at 3rd, 3d6 at 5th, and so on). Creatures that take damage from channeled energy receive a Will save to halve the damage. The DC of this save is equal to 10 + 1/2 the cleric's level + the cleric's Charisma modifier. Creatures healed by channel energy cannot exceed their maximum hit point total—all excess healing is lost. A cleric may channel energy a number of times per day equal to 3 + her Charisma modifier. This is a standard action that does not provoke an attack of opportunity. A cleric can choose whether or not to include herself in this effect. A cleric must be able to present her holy symbol to use this ability.
Countersong Ability At 1st level, a bard learns to counter magic effects that depend on sound (but not spells that have verbal components.) Each round of the countersong he makes a Perform (keyboard, percussion, wind, string, or sing) skill check. Any creature within 30 feet of the bard (including the bard himself) that is affected by a sonic or language-dependent magical attack may use the bard's Perform check result in place of its saving throw if, after the saving throw is rolled, the Perform check result proves to be higher. If a creature within range of the countersong is already under the effect of a non-instantaneous sonic or language-dependent magical attack, it gains another saving throw against the effect each round it hears the countersong, but it must use the bard's Perform skill check result for the save. Countersong does not work on effects that don't allow saves. Countersong relies on audible components.
Damage Reduction Ability

A creature with this special quality ignores damage from most weapons and natural attacks. Wounds heal immediately, or the weapon bounces off harmlessly (in either case, the opponent knows the attack was ineffective). The creature takes normal damage from energy attacks (even nonmagical ones), spells, spell-like abilities, and supernatural abilities. A certain kind of weapon can sometimes damage the creature normally, as noted below.

The entry indicates the amount of damage ignored (usually 5 to 15 points) and the type of weapon that negates the ability.

Some monsters are vulnerable to piercing, bludgeoning, or slashing damage. Others are vulnerable to certain materials, such as adamantine, alchemical silver, or cold-forged iron. Attacks from weapons that are not of the correct type or made of the correct material have their damage reduced, although a high enhancement bonus can overcome some forms of damage reduction.

Some monsters are vulnerable to magic weapons. Any weapon with at least a +1 magical enhancement bonus on attack and damage rolls overcomes the damage reduction of these monsters. Such creatures' natural weapons (but not their attacks with weapons) are treated as magic weapons for the purpose of overcoming damage reduction.

A few very powerful monsters are vulnerable only to epic weapons—that is, magic weapons with at least a +6 enhancement bonus. Such creatures' natural weapons are also treated as epic weapons for the purpose of overcoming damage reduction.

Some monsters are vulnerable to good-, evil-, chaotic-, or lawful-aligned weapons, such as from an align weapon spell or the holy magical weapon property. A creature with an alignment subtype (chaotic, evil, good, or lawful) can overcome this type of damage reduction with its natural weapons and weapons it wields as if the weapons or natural weapons had an alignment (or alignments) that matched the subtype(s) of the creature.

When a damage reduction entry has a dash (-) after the slash, no weapon negates the damage reduction.

A few creatures are harmed by more than one kind of weapon, such as “cold iron or magic.” A weapon that inflicts damage of either of these types overcomes this damage reduction.

A few other creatures require combinations of different types of attacks to overcome their damage reduction (such as “magic and silver”), and a weapon must be both types to overcome this type of damage reduction. A weapon that is only one type is still subject to damage reduction.

Format: DR 5/silver; Location: Defensive Abilities.

Darkvision Ability Darkvision is the extraordinary ability to see with no light source at all, out to a range specified for the creature. Darkvision is black-and-white only (colors cannot be discerned). It does not allow characters to see anything that they could not see otherwise—invisible objects are still invisible, and illusions are still visible as what they seem to be. Likewise, darkvision subjects a creature to gaze attacks normally. The presence of light does not spoil darkvision.
Defensive Training Ability Get a dodge bonus to AC against monsters of a subtype
Elven Magic Ability Elves receive a +2 racial bonus on caster level checks made to overcome spell resistance. In addition, elves receive a +2 racial bonus on Spellcraft skill checks made to identify the properties of magic items.
Evasion Ability The character can avoid even magical and unusual attacks with great agility. If she makes a successful Reflex saving throw against an attack that normally deals half damage on a successful save, she instead takes no damage. Evasion can be used only if the rogue or monk is wearing light armor or no armor. A helpless character does not gain the benefit of evasion.
Fast Healing Ability

A creature with fast healing regains hit points at an exceptional rate, usually 1 or more hit points per round, as given in the creature's entry. Except where noted here, fast healing is just like natural healing. Fast healing does not restore hit points lost from starvation, thirst, or suffocation, nor does it allow a creature to regrow lost body parts. Unless otherwise stated, it does not allow lost body parts to be reattached. Fast healing continues to function (even at negative hit points) until a creature dies, at which point the effects of fast healing end immediately.

Format: fast healing 5; Location: hp.

Monk Fast Movement Ability At 3rd level, a monk gains an enhancement bonus to his land speed, as shown on Table: Monk. A monk in armor or carrying a medium or heavy load loses this extra speed.
Favored Class Hitpoint Ability Whenever a character gains a level in his favored class, he receives either + 1 hit point or + 1 skill rank. The choice of favored class cannot be changed once the character is created, and the choice of gaining a hit point or a skill rank each time a character gains a level (including his first level) cannot be changed once made for a particular level. Prestige classes (see Prestige Classes) can never be a favored class.
Favored Class Skill Point Ability Whenever a character gains a level in his favored class, he receives either + 1 hit point or + 1 skill rank. The choice of favored class cannot be changed once the character is created, and the choice of gaining a hit point or a skill rank each time a character gains a level (including his first level) cannot be changed once made for a particular level. Prestige classes (see Prestige Classes) can never be a favored class.
Flurry of Blows Ability  
Hide in Plain Sight Ability The creature can use the Stealth skill even while being observed. As long as she is within 10 feet of an area of dim light, the creature can hide herself from view in the open without anything to actually hide behind. She cannot, however, hide in her own shadow.
Immunity Ability A creature with immunities takes no damage from listed sources. Immunities can also apply to afflictions, conditions, spells (based on school, level, or save type), and other effects. A creature that is immune does not suffer from these effects, or any secondary effects that are triggered due to an immune effect
Inspire Competence Ability A bard of 3rd level or higher can use his performance to help an ally succeed at a task. The ally must be within 30 feet and able to see and hear the bard. The ally gets a +2 competence bonus on skill checks with a particular skill as long as she continues to hear the bard’s performance. This bonus increases by +1 for every four levels the bard has attained beyond 3rd (+3 at 7th, +4 at 11th, +5 at 15th, and +6 at 19th). Certain uses of this ability are infeasible, such as Stealth, and may be disallowed at the GM's discretion. A bard can't inspire competence in himself. Inspire competence relies on audible components.
Inspire Courage Ability A 1st level bard can use his performance to inspire courage in his allies (including himself), bolstering them against fear and improving their combat abilities. To be affected, an ally must be able to perceive the bard’s performance. An affected ally receives a +1 morale bonus on saving throws against charm and fear effects and a +1 competence bonus on attack and weapon damage rolls. At 5th level, and every six bard levels thereafter, this bonus increases by +1, to a maximum of +4 at 17th level. Inspire courage is a mind-affecting ability. Inspire courage can use audible or visual components. The bard must choose which component to use when starting his performance.
Ninja Ki Power Ability

A ninja can channel her ki to manifest special powers of stealth and mobility. She can use her ki powers a number of times per day equal to one-half her class level (minimum 1) plus her Wisdom bonus (if any). Ki powers can be used only if a ninja is wearing no armor and is unencumbered.

As long as a ninja’s ki pool isn’t empty (that is, as long as she has at least one daily use remaining), she gains a +2 bonus on her Will saves.

A ninja’s ki powers are ghost step, ki dodge, ghost strike, greater ki dodge, and ghost walk. Each power is described under a separate entry below.

Lore Master Ability At 5th level, the bard becomes a master of lore and can take 10 on any Knowledge skill check that he has ranks in. A bard can choose not to take 10 and can instead roll normally. In addition, once per day, the bard can take 20 on any Knowledge skill check as a standard action. He can use this ability one additional time per day for every six levels he possesses beyond 5th, to a maximum of three times per day at 17th level.
Low-Light Vision Ability A creature with low-light vision can see twice as far as a human in starlight, moonlight, torchlight, and similar conditions of dim light. It retains the ability to distinguish color and detail under these conditions.
Superior Low-Light Vision Ability Extraordinary vision in low-light conditions. He can see four times as far as a human in low-light conditions.
Lycanthropic Empathy Ability In any form, natural lycanthropes can communicate and empathize with animals related to their animal form. They can use Diplomacy to alter such an animal's attitude, and when so doing gain a +4 racial bonus on the check. Afflicted lycanthropes only gain this ability in animal or hybrid form.
Monk Maneuver Training Ability At 3rd level, a monk uses his monk level in place of his base attack bonus when calculating his Combat Maneuver Bonus. Base attack bonuses granted from other classes are unaffected and are added normally.
Mountain Movement Ability

Because the creatures practically live on the ledges and cliffs of the most forbidding mountains, they are particularly adept at negotiating mountain hazards. The creature can make standing long jumps and high jumps as if they were running long jumps and high jumps. The creature can engage in accelerated climbing (climbing half his speed as a move action) without taking the –5 penalty on the Climb check.

Powerful Build Ability

The physical stature of the creature lets him function in many ways as if he were one size category larger. Whenever the creature is subject to a size modifier or special size modifier for an opposed check (such as during grapple checks, bull rush attempts, and trip attempts), the creature is treated as one size larger if doing so is advantageous to him. The creature is also considered to be one size larger when determining whether a creature's special attacks based on size (such as improved grab or swallow whole) can affect him. The creature can use weapons designed for a creature one size larger without penalty. However, his space and reach remain those of a creature of his actual size. The benefits of this racial trait stack with the effects of powers, abilities, and spells that change the subject's size category.

Rage Ability

A barbarian can call upon inner reserves of strength and ferocity, granting her additional combat prowess. Starting at 1st level, a barbarian can rage for a number of rounds per day equal to 4 + her Constitution modifier. At each level after 1st, she can rage for 2 additional rounds. Temporary increases to Constitution, such as those gained from rage and spells like bear's endurance, do not increase the total number of rounds that a barbarian can rage per day. A barbarian can enter rage as a free action. The total number of rounds of rage per day is renewed after resting for 8 hours, although these hours do not need to be consecutive.

While in rage, a barbarian gains a +4 morale bonus to her Strength and Constitution, as well as a +2 morale bonus on Will saves. In addition, she takes a –2 penalty to Armor Class. The increase to Constitution grants the barbarian 2 hit points per Hit Dice, but these disappear when the rage ends and are not lost first like temporary hit points. While in rage, a barbarian cannot use any Charisma-, Dexterity-, or Intelligence-based skills (except Acrobatics, Fly, Intimidate, and Ride) or any ability that requires patience or concentration.

A barbarian can end her rage as a free action and is fatigued after rage for a number of rounds equal to 2 times the number of rounds spent in the rage. A barbarian cannot enter a new rage while fatigued or exhausted but can otherwise enter rage multiple times during a single encounter or combat. If a barbarian falls unconscious, her rage immediately ends, placing her in peril of death.

Barbarian Rage Powers Ability As a barbarian gains levels, she learns to use her rage in new ways. Starting at 2nd level, a barbarian gains a rage power. She gains another rage power for every two levels of barbarian attained after 2nd level. A barbarian gains the benefits of rage powers only while raging, and some of these powers require the barbarian to take an action first. Unless otherwise noted, a barbarian cannot select an individual power more than once.
Resistance Ability A creature with this special quality ignores some damage of the indicated type each time it takes damage of that kind (commonly acid, cold, electricity, or fire). The entry indicates the amount and type of damage ignored. Format: Resist acid 10; Location: Defensive Abilities.
Scent Ability

This special quality allows a creature to detect approaching enemies, sniff out hidden foes, and track by sense of smell. Creatures with the scent ability can identify familiar odors just as humans do familiar sights.

The creature can detect opponents within 30 feet by sense of smell. If the opponent is upwind, the range increases to 60 feet; if downwind, it drops to 15 feet. Strong scents, such as smoke or rotting garbage, can be detected at twice the ranges noted above. Overpowering scents, such as skunk musk or troglodyte stench, can be detected at triple normal range.

When a creature detects a scent, the exact location of the source is not revealed—only its presence somewhere within range. The creature can take a move action to note the direction of the scent. When the creature is within 5 feet of the source, it pinpoints the source's location.

A creature with the scent ability can follow tracks by smell, making a Wisdom (or Survival) check to find or follow a track. The typical DC for a fresh trail is 10 (no matter what kind of surface holds the scent). This DC increases or decreases depending on how strong the quarry's odor is, the number of creatures, and the age of the trail. For each hour that the trail is cold, the DC increases by 2. The ability otherwise follows the rules for the Survival skill. Creatures tracking by scent ignore the effects of surface conditions and poor visibility.

Format: scent; Location: Senses.

Situational Save Modifiers Ability Bonus to saving throws for specific situations.
Sneak Attack Ability If a rogue can catch an opponent when he is unable to defend himself effectively from her attack, she can strike a vital spot for extra damage. The rogue's attack deals extra damage anytime her target would be denied a Dexterity bonus to AC (whether the target actually has a Dexterity bonus or not), or when the rogue flanks her target. This extra damage is 1d6 at 1st level, and increases by 1d6 every two rogue levels thereafter. Should the rogue score a critical hit with a sneak attack, this extra damage is not multiplied. Ranged attacks can count as sneak attacks only if the target is within 30 feet. With a weapon that deals nonlethal damage (like a sap, whip, or an unarmed strike), a rogue can make a sneak attack that deals nonlethal damage instead of lethal damage. She cannot use a weapon that deals lethal damage to deal nonlethal damage in a sneak attack, not even with the usual –4 penalty. The rogue must be able to see the target well enough to pick out a vital spot and must be able to reach such a spot. A rogue cannot sneak attack while striking a creature with concealment.
Spell Level Ability Used to populate a spell level.
Extra Spell Slots Ability Used when a class gets 5+ base spells. Not a real ability.
Spell-Like Ability Ability Spell-like abilities are magical and work just like spells (though they are not spells and so have no verbal, somatic, focus, or material components). They go away in an antimagic field and are subject to spell resistance if the spell the ability is based on would be subject to spell resistance. A spell-like ability usually has a limit on how often it can be used. A constant spell-like ability or one that can be used at will has no use limit; unless otherwise stated, a creature can only use a constant spell-like ability on itself. Reactivating a constant spell-like ability is a swift action. Using all other spell-like abilities is a standard action unless noted otherwise, and doing so provokes attacks of opportunity. It is possible to make a concentration check to use a spell-like ability defensively and avoid provoking an attack of opportunity, just as when casting a spell. A spell-like ability can be disrupted just as a spell can be. Spell-like abilities cannot be used to counterspell, nor can they be counterspelled. For creatures with spell-like abilities, a designated caster level defines how difficult it is to dispel their spell-like effects and to define any level-dependent variables (such as range and duration) the abilities might have. The creature's caster level never affects which spell-like abilities the creature has; sometimes the given caster level is lower than the level a spellcasting character would need to cast the spell of the same name. If no caster level is specified, the caster level is equal to the creature's Hit Dice. The saving throw (if any) against a spell-like ability is 10 + the level of the spell the ability resembles or duplicates + the creature's Charisma modifier. Some spell-like abilities duplicate spells that work differently when cast by characters of different classes. A monster's spell-like abilities are presumed to be the sorcerer/wizard versions. If the spell in question is not a sorcerer/wizard spell, then default to cleric, druid, bard, paladin, and ranger, in that order.
Spells Ability D20 SRD Version: Sometimes a creature can cast arcane or divine spells just as a member of a spellcasting class can (and can activate magic items accordingly). Such creatures are subject to the same spellcasting rules that characters are, except as follows. A spellcasting creature that lacks hands or arms can provide any somatic component a spell might require by moving its body. Such a creature also does need material components for its spells. The creature can cast the spell by either touching the required component (but not if the component is in another creature's possession) or having the required component on its person. Sometimes spellcasting creatures utilize the Eschew Materials feat to avoid fussing with noncostly components. A spellcasting creature is not actually a member of a class unless its entry says so, and it does not gain any class abilities. A creature with access to cleric spells must prepare them in the normal manner and receives domain spells if noted, but it does not receive domain granted powers unless it has at least one level in the cleric class.
Spells Known Ability  
Still Mind Ability A monk of 3rd level or higher gains a +2 bonus on saving throws against enchantment spells and effects.
Trapfinding Ability A character adds 1/2 her level to Perception skill checks made to locate traps and to Disable Device skill checks (minimum +1). A character can use Disable Device to disarm magic traps.
Uncanny Dodge Ability A creature has the ability to react to danger before her senses would normally allow her to do so. She cannot be caught flat-footed, nor does she lose her Dex bonus to AC if the attacker is invisible. She still loses her Dexterity bonus to Armor Class if immobilized. A creature with this ability can still lose her Dexterity bonus to Armor Class if an opponent successfully uses the feint action against her. If a creature already has uncanny dodge from a different class, she automatically gains improved uncanny dodge instead.
Versatile Performance Ability At 2nd level, a bard can choose one type of Perform skill. He can use his bonus in that skill in place of his bonus in associated skills. When substituting in this way, the bard uses his total Perform skill bonus, including class skill bonus, in place of its associated skill's bonus, whether or not he has ranks in that skill or if it is a class skill. At 6th level, and every 4 levels thereafter, the bard can select an additional type of Perform to substitute. The types of Perform and their associated skills are: Act (Bluff, Disguise), Comedy (Bluff, Intimidate), Dance (Acrobatics, Fly), Keyboard Instruments (Diplomacy, Intimidate), Oratory (Diplomacy, Sense Motive), Percussion (Handle Animal, Intimidate), Sing (Bluff, Sense Motive), String (Bluff, Diplomacy), and Wind (Diplomacy, Handle Animal).
Well-Versed Ability At 2nd level, the bard becomes resistant to the bardic performance of others, and to sonic effects in general. The bard gains a +4 bonus on saving throws made against bardic performance, sonic, and language-dependent effects.