Armour Class (Also called AC) is a mechanic in Baldur's Gate 3. Armour Class is what protects a Character from any attack that uses an Attack Roll, Spells included. The amount of protection you gain depends on  the Armour you are wearing.

 

Armour Class in Baldur's Gate 3

Your Armour Class (AC) represents how well your character avoids being wounded in battle. Things that contribute to your AC include the Armour you wear, the Shield you carry, and your Dexterity modifier.

Calculating Armour Class

Without Armour or a Shield, your character's AC equals 10 + his or her Dexterity modifier.

If your character wears Armour, carries a shield, or both their AC will be used. For example Padded Armour gives you 11 AC, which means an enemy must reach a total of 11 on the Attack Roll in order hit you. In addition, as Padded Armour is a Light Armour, so your Dexterity Modifier will be added to the total AC.

Light Armour

When wearing Light Armour you gain the full value of your Dexterity modifier added to your Armour Class.

Medium Armour

When wearing Medium Armour, you gain up to +2 AC from your Dexterity modifier

Heavy Armour

When wearing Heavy Armour you gain no benefit from your Dexterity modifier at all.

Shields

In Baldur's Gate 3, Using a Shield will increase your AC by +2.

Armor Proficiency

Your character needs to be proficient with Armour and shields to wear and use them effectively, and your Armour and shield proficiencies are determined by your class. There are drawbacks to wearing Armour or carrying a shield if you lack the required proficiency, as explained in chapter 5

Unlike Weapons Proficiency in an Armour type is a must have or you'll be facing serious penalties. Characters who wear Armour they aren't proficient in will have disadvantage on any Ability Check, Saving Throw or Attack Roll that involves Strength or Dexterity and they can't cast Spells.

 




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    • Anonymous

      04 Feb 2021 18:15  

      Is there a cap for AC ? Can you reach 20 ? And if yes, how does it affects you ?

      With 14 Dex (+2 modifier), medium armor (15 base AC), a shield (+2) and the Defense feat (Fighter lvl2: +1 AC), we could reach 15+2+2+1 = 20AC, but the real question is does it cap at 19 or so

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