Abilities

Abilites are representations of a creature's physical and mental attributes. There are six abilities in Baldur's Gate 3, and every creature has a set of six ability scores, numerical values which repdesent how well they perform at each ability.

Each ability score translate directly into an ability score modifier – modifiers which function as bonuses or penalties that are added to (or subtracted from) most dice rolls in the game.

Overview

Each ability describes a creature's capability in a different area:

Strength (STR), physical power.
Dexterity (DEX), agility and finesse.
Constitution (CON), overall health and endurance.
Intelligence (INT), rational reasoning and memory.
Wisdom (WIS), common sense and insight.
Charisma (CHA), charm or force of character.

Character creation

Ability scores are bought with points during character creation. The minimum ability score during character creation is 8, and the maximum is 15, before any of the ability score increases are applied.

Each class has designated primary and secondary abilities. While these have no particular mechanical significance, they are mentioned in the character creator, and serve as recommendations for players unfamiliar with the rules of the game.

Ability score modifiers

Each ability has an ability score modifier, which is derived from its respective ability score. These modifiers are added to various dice rolls in the game, including attack rolls, damage rolls, ability checks and saving throws.

Ability score modifiers are decreased by 1 for every odd ability score below 10, and are increased by 1 for every even ability score above 10.^{[note 1]}

The formula used for calculation an ability score's modifier is Modifier = (Score − 10) ÷ 2 (rounded down).

Ability score modifier chart
Ability score	Modifier value	Ability score	Modifier value
1	-5	16-17	+3
2-3	-4	18-19	+4
4-5	-3	20-21	+5
6-7	-2	22-23	+6
8-9	-1	24-25	+7
10-11	+0	26-27	+8
12-13	+1	28-29	+9
14-15	+2	30	+10

Spellcasting ability

Every class has an ability that affects their spellcasting, and they add its respective ability score modifier to the attack rolls and Difficulty Class of their spells.^{[note 2]}^{[note 3]}

Intelligence: Fighter, Rogue, Wizard.
Wisdom: Cleric, Druid, Monk, Ranger.
Charisma: Barbarian, Bard, Paladin, Sorcerer, Warlock.

Saving throws

Each saving throw has an associated ability, and creatures can have proficiency with or advantage on saves that use a specific ability, usually granted by clads and race, respectively.

Dexterity is a common ability used for saves against spells that deal area of effect damage, often halving the damage rolls of those spells.
Constitution saves are used is used to maintain concentration on long-duration spells, and are used when saving against poisons or spells that test a target's endurance or resilience.
Intelligence saves are used against psionic spells and features, such as those used by illithids.
Wisdom is a commonly used ability for saves against spells that test a creature's composure, willpower or self control.

Overview of abilities

Strength

Creatures add their Strength modifier to the results of attack and damage rolls for melee weapons.
Increases carrying capacity and jump distance.
Improves chances of success of shoving or resisting being shoved.
The primary ability of fighters and barbarians.

Associated skills: Athletics

Dexterity

Creatures add their Dexterity modifier to to the results of attack and damage rolls of ranged weapons and, when the creature's Dexterity score is higher than their Strength score, melee weapons with the Finesse property.
Creatures also add their Dexterity modifier to their AC, up to a maximum of +2 when wearing medium armour. The bonus is ignored when wearing heavy armour.
The primary ability of monks, rangers and rogues.

Associated skills: Acrobatics, Sleight of Hand, Stealth

Constitution

Creatures add their Constitution modifier to the amount of hit points they gain on level up. This increase is applied retroactively.

Associated skills: None

Intelligence

The primary ability of wizards.

Associated skills: Arcana, History, Investigation, Nature, Religion

Wisdom

The primary ability for clerics and druids
An important ability for monks, as several of their class features depend on it.

Associated skills: Animal Handling, Insight, Medicine, Perception, Survival

Charisma

The primary ability for bards, sorcerers, warlocks and paladins.

Associated skills: Deception, Intimidation, Performance, Persuasion

Ability checks

Ability checks are dice rolls made to determine whether a creature succeeds or fails at a task. When attempting an ability check, a creature rolls a d20, and then adds the relevant ability score modifier and, if applicable, proficiency bonus to the results of the roll. If the final results equal or exceeds a target Difficulty Class (DC), specific to that task, it is considered as success.

Formula:

d20 + Ability Score Modifier + (when applicable) proficiency Bonus

Skills

Ability checks are usually made using a specified skill. If a creature is proficient with an ability check's associated skill, they may add their proficiency bonus to the results of that roll, in addition to the relevant ability score modifier. These rolls are often referred to as skill checks by the community, although they are not referred to as such in-game.

List of skills, sorted by ability
Ability Score	Skills
Strength	Athletics
Dexterity	Acrobatics Sleight of Hand Stealth
Intelligence	Arcana History Investigation Nature Religion
Wisdom	Animal Handling Insight Medicine Perception Survival
Charisma	Deception Intimidation Performance Persuasion

Common scenarios

Automatic rolls

Some ability checks are automatic. For example, when a creature approaches an unactivated trap, the game rolls a Perception ability check to determine whether the creation notices the trap. Perception is a Wisdom Skill, so the character adds their Wisdom modifier and, if proficient in Perception, their proficiency bonus to the ability check. Once the trap is discovered, the character can interact with it to attempt to Disarm it, which requires a successful Sleight of Hand check, a Dexterity Skill.

During dialogue

Ability checks are also common during dialogue, where some responses require a ability check to determine the outcome. Examples include using Charisma-based skills like Persuasion, Deception or Intimidation to influence others, or Intelligence-based Skills like Investigation, History or Religion to determine or remember facts.

Contests

A contest is a special type of ability check in which two creatures both roll an ability check to oppose each other, and one wins over the other. The creatures don't necessarily roll the same type of check.

An example of this is the Shove action. The creature attempting the Shove rolls Athletics, and the defending creature rolls either Athletics or Acrobatics (the game chooses the Skill with the highest bonus) to contest the Shove. If the attacker's roll is higher than the defender's, the Shove succeeds; otherwise it fails.

Improving or reducing ability scores

There are multiple ways of improving or reducing ability scores, either permanently or temporarily.

Permanently

Ability scores can be permanently improved through the Ability Improvement feat, though this cannot raise a score above 20.

There are also several ways of permanently improving ability scores by through quests and interactions, which can raise ability scores over 20.^{[note 4]}

Temporarily

Ability scores may be temporarily increased above 20 through various enhancements, such as magical spells, elixirs, or special equipment.^{[note 4]}

Ability score reduction

Some supernatural or magical effects (like Devour Intellect) can temporarily drain abilities, reducing one or more of the target's ability scores, potentially to zero. If any score is reduced to zero, the target dies instantly.

Footnotes

↑ Ability score modifiera cannot be increased beyond +10, even if their respective ability scores are increased further.
↑ The primary ability of casters classes always corresponds to their spellcasting ability, with the exception of rangers and classes that gain spellcasting via a subclass class feature.
↑ Racial spells may use their own designated ability. For example, the cantrip granted during character creation by the elf or half-elf race always uses Intelligence, regardless of the creature's class.
↑ ^4.0 ^4.1 The Mirror of Loss can both permanently improve and temporarily reduce ability scores.

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[1] Ability score modifiera cannot be increased beyond +10, even if their respective ability scores are increased further.

[2] The primary ability of casters classes always corresponds to their spellcasting ability, with the exception of rangers and classes that gain spellcasting via a subclass class feature.

[3] Racial spells may use their own designated ability. For example, the cantrip granted during character creation by the elf or half-elf race always uses Intelligence, regardless of the creature's class.

[mirror-4] 4.0 ^4.1 The Mirror of Loss can both permanently improve and temporarily reduce ability scores.

[note 1]

[note 2]

[note 3]

[note 4]