How does AC work in 5e?

How Does AC Work in 5e?

Introduction

In Dungeons & Dragons 5th Edition (5e), Armor Class (AC) is a crucial aspect of character combat. It represents a character’s ability to avoid taking damage from attacks. In this article, we’ll delve into the mechanics of AC, exploring how it works, and providing valuable insights to help you make the most of your character’s defenses.

Direct Answer

In 5e, Armor Class is a numerical value that represents a character’s ability to avoid taking damage from attacks. When an attack is made, the attacker rolls a d20 (a 20-sided die) and adds their attack bonus to the roll. The target then adds their Armor Class to the roll. If the result equals or exceeds the target’s AC, the attack hits, and the attacker deals damage.

Calculating AC

AC is calculated using the following formula:

AC = 10 + Dexterity modifier (if unarmored) or AC of the armor worn

• For unarmored characters, the Dexterity modifier is added to the base AC of 10.
• For armored characters, the AC of the armor is used, which is usually a fixed value.

Types of Armor

In 5e, there are several types of armor, each with its own AC value. Here’s a brief overview:

• Unarmored: No armor, Dexterity modifier added to the base AC of 10.
• Leather: AC 11 + Dexterity modifier.
• Chain Mail: AC 16.
• Breastplate: AC 14.
• Shield: AC varies depending on the type of shield and the character’s Dexterity modifier.

How to Calculate AC without Armor

If a character is not wearing armor, their AC is calculated as follows:

• Start with a base AC of 10.
• Add the character’s Dexterity modifier.

For example, a character with a Dexterity modifier of +2 would have an AC of 12 (10 + 2).

How to Calculate AC with Armor

If a character is wearing armor, their AC is the same as the armor’s AC value. For example, a character wearing chain mail would have an AC of 16.

Negative Dexterity Modifiers and AC

If a character has a negative Dexterity modifier, it will reduce their AC. For example, a character with a Dexterity modifier of -1 would have an AC of 9 (10 – 1).

Mage Armor

Mage armor is a spell that grants a character a magical armor class. The AC value granted by the spell is +2 to the character’s AC.

Conclusion

In conclusion, Armor Class is a crucial aspect of character combat in 5e. Understanding how to calculate AC, including the effects of armor and negative Dexterity modifiers, is essential for creating a well-rounded character. By following the formulas and guidelines outlined in this article, you’ll be well-equipped to defend yourself against the dangers of the game world.