Table: Ability Modifiers and Bonus Spells
Score Modifier Bonus Spells (by Spell Level)
0 1st 2nd 3rd 4th 5th 6th 7th 8th 9th
1 -5 Can't cast spells tied to this ability
2-3 -4 Can't cast spells tied to this ability
4-5 -3 Can't cast spells tied to this ability
6-7 -2 Can't cast spells tied to this ability
8-9 -1 Can't cast spells tied to this ability
10-11 0
12-13 +1 1
14-15 +2 1 1
16-17 +3 1 1 1
18-19 +4 1 1 1 1
20-21 +5 2 1 1 1 1
22-23 +6 2 2 1 1 1 1
24-25 +7 2 2 2 1 1 1 1
26-27 +8 2 2 2 2 1 1 1 1
28-29 +9 3 2 2 2 2 1 1 1 1
30-31 +10 3 3 2 2 2 2 1 1 1
32-33 +11 3 3 3 2 2 2 2 1 1
34-35 +12 3 3 3 3 2 2 2 2 1
36-37 +13 4 3 3 3 3 2 2 2 2
38-39 +14 4 4 3 3 3 3 2 2 2
40-41 +15 4 4 4 3 3 3 3 2 2
42-43 +16 4 4 4 4 3 3 3 3 2
44-45 +17 5 4 4 4 4 3 3 3 3
etc. . .

Ability Scores

Each character has six ability scores that represent his character's most basic attributes. They are his raw talent and prowess. While a character rarely rolls a check using just an ability score, these scores, and the modifiers they create, affect nearly every aspect of a character's skills and abilities. Each ability score generally ranges from 3 to 18, although racial bonuses and penalties can alter this; an average ability score is 10.

Generating Ability Scores

There are a number of different methods used to generate ability scores. Each of these methods gives a different level of flexibility and randomness to character generation.

Racial modifiers (adjustments made to your ability scores due to your character's race) are applied after the scores are generated.

Standard

Roll 4d6, discard the lowest die result, and add the three remaining results together. Record this total and repeat the process until six numbers are generated. Assign these totals to your ability scores as you see fit. This method is less random than Classic and tends to create characters with above-average ability scores.

Classic

Roll 3d6 and add the dice together. Record this total and repeat the process until you generate six numbers. Assign these results to your ability scores as you see fit. This method is quite random, and some characters will have clearly superior abilities. This randomness can be taken one step further, with the totals applied to specific ability scores in the order they are rolled. Characters generated using this method are difficult to fit to predetermined concepts, as their scores might not support given classes or personalities, and instead are best designed around their ability scores.

Heroic

Roll 2d6 and add 6 to the sum of the dice. Record this total and repeat the process until six numbers are generated. Assign these totals to your ability scores as you see fit. This is less random than the Standard method and generates characters with mostly above-average scores.

Dice Pool

Each character has a pool of 24d6 to assign to his statistics. Before the dice are rolled, the player selects the number of dice to roll for each score, with a minimum of 3d6 for each ability. Once the dice have been assigned, the player rolls each group and totals the result of the three highest dice. For more high-powered games, the GM should increase the total number of dice to 28. This method generates characters of a similar power to the Standard method.
Table: Ability Score Costs
ScorePoints
7 -4
8 -2
9 -1
10 0
11 1
12 2
13 3
14 5
15 7
16 10
17 13
18 17
Campaign Types
Low 10
Standard 15
High 20
Epic 25

Purchase

Each character receives a number of points to spend on increasing his basic attributes. In this method, all attributes start at a base of 10. A character can increase an individual score by spending some of his points. Likewise, he can gain more points to spend on other scores by decreasing one or more of his ability scores. No score can be reduced below 7 or raised above 18 using this method. See Table 1-1 on the next page for the costs of each score. After all the points are spent, apply any racial modifiers the character might have.

The number of points you have to spend using the purchase method depends on the type of campaign you are playing. The standard value for a character is 15 points. Average nonplayer characters (NPCs) are typically built using as few as 3 points. See Table 1-2 on the next page for a number of possible point values depending on the style of campaign. The purchase method emphasizes player choice and creates equally balanced characters. This system is typically used for organized play events, such as the Pathfinder Society (visit paizo.com/pathfinderSociety for more details on this exciting campaign).

See also the point buy calculator.

Ability Modifiers

Each ability, after changes made because of race, has a modifier ranging from -5 to +5. Table: Ability Modifiers and Bonus Spells shows the modifier for each score.

The modifier is the number you apply to the die roll when your character tries to do something related to that ability. You also use the modifier with some numbers that aren't die rolls. A positive modifier is called a bonus, and a negative modifier is called a penalty. The table also shows bonus spells, which you'll need to know about if your character is a spellcaster.

Abilities And Spellcasters

The ability that governs bonus spells depends on what type of spellcaster your character is: Intelligence for wizards; Wisdom for clerics, druids, and rangers; and Charisma for bards, paladins, and sorcerers. In addition to having a high ability score, a spellcaster must be of a high enough class level to be able to cast spells of a given spell level.

The Abilities

Each ability partially describes your character and affects some of his or her actions.

Strength (Str)

Strength measures muscle and physical power. This ability is important for those who engage in hand-to-hand (or "melee") combat, such as fighters, barbarians, monks, paladins, and some rangers. Strength also sets the maximum amount of weight your character can carry.

A character with a Strength score of 0 is too weak to move in any way and is unconscious. Some creatures do not possess a Strength score and have no modifier at all to Strength-based skills or checks.

You apply your character's Strength modifier to:

Dexterity (Dex)

Dexterity measures agility, reflexes, and balance. This ability is the most important one for rogues, but it's also useful for characters who wear light or medium armor or no armor at all. This ability is vital for characters seeking to excel with ranged weapons, such as the bow or sling.

A character with a Dexterity score of 0 is incapable of moving and is effectively immobile (but not unconscious).

You apply your character's Dexterity modifier to:

Constitution (Con)

Constitution represents your character's health and stamina. A Constitution bonus increases a character's hit points, so the ability is important for all classes.

Some creatures, such as undead and constructs, do not have a Constitution score. Their modifier is +0 for any Constitution-based checks. A character with a Constitution score of 0 is dead.

You apply your character's Constitution modifier to:

If a character's Constitution score changes enough to alter his or her Constitution modifier, the character's hit points also increase or decrease accordingly.

Intelligence (Int)

Intelligence determines how well your character learns and reasons. This ability is important for wizards because it affects their spellcasting ability in many ways.

Creatures of animal-level instinct have Intelligence scores of 1 or 2. Any creature capable of understanding speech has a score of at least 3. A character with an Intelligence score of 0 is comatose. Some creatures do not possess an Intelligence score. Their modifier is +0 for any Intelligence-based skills or checks.

You apply your character's Intelligence modifier to:

A wizard gains bonus spells based on his Intelligence score. The minimum Intelligence score needed to cast a wizard spell is 10 + the spell's level.

Wisdom (Wis)

Wisdom describes a character's willpower, common sense, awareness, and intuition. Wisdom is the most important ability for clerics and druids, and it is also important for paladins and rangers. If you want your character to have acute senses, put a high score in Wisdom.

Every creature has a Wisdom score. A character with a Wisdom score of 0 is incapable of rational thought and is unconscious.

You apply your character's Wisdom modifier to:

Clerics, druids, and rangers get bonus spells based on their Wisdom scores. The minimum Wisdom score needed to cast a cleric, druid, or ranger spell is 10 + the spell's level.

Charisma (Cha)

Charisma measures a character's personality, personal magnetism, ability to lead, and appearance. It is the most important ability for paladins, sorcerers, and bards. It is also important for clerics, since it affects their ability to channel energy.

For undead creatures, Charisma is a measure of their unnatural "lifeforce." Every creature has a Charisma score. A character with a Charisma score of 0 is not able to exert himself in any way and is unconscious.

You apply your character's Charisma modifier to:

Bards, paladins, and sorcerers gain a number of bonus spells based on their Charisma scores. The minimum Charisma score needed to cast a bard, paladin, or sorcerer spell is 10 + the spell's level.