Ability Score (Also called AC) is a mechanic in Baldur's Gate 3. Ability Score determines the character's capabilities and are definded by 6 Abilites. The abilities are Strength, Dexterity, Constitution, Intelligence, Wisdom, and Charisma
Ability Score in Baldur's Gate 3
Ability Score Description
The three main rolls of the game the Ability Check, the Saving Throw, and the Attack Roll rely on the six Ability Scores. When a D20 is rolled, add an Ability Modifier derived from one of the six ability scores, and compare the total to a target number
Acquiring Ability Score Points
Players gain an Ability Score point every 4 levels (At level 4 - 8 - 12 -16 and finally 19) and can opt out of this ability score improvement to instead take a Feat.
Ability Score & Ability Modifier
It's the number that represents each ability stat of your character. On the other hand, Ability Modifier is the bonus or penalty you gain from your ability score of each ability. To determine an Ability Modifier, subtract 10 to the ability score, then divide the result by two rounded down. For example. if you have 20 Strength, your ability score is 21. and your ability modifier(21-10=11) is +5 (11/2=5). If you have 6 Wisdom, then your ability Score is 6 (6 - 10 = -4) and your ability modifier is -2. (-4 / 2 = -2)
Both ability scores and ability modifiers determines how successful your character is at various things throughout the game.
To determine an ability modifier without consulting the table, subtract 10 from the ability score and then divide the total by 2 (round down).Because ability modifiers affect almost every attack roll, ability check, and saving throw, ability modifiers com e up in play more often than their associated scores.
Ability Modifier Table