Questions tagged [armor-class]

For questions about Armor Class (AC), the mechanical abstraction of how difficult it is to hit and cause damage to an opponent in D&D and related RPGs.

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Does the dex bonus to AC from armor and shield stack?

I have a dwarf with full plate armor and a tower shield with dex of 16 (+3). Full plate grants a max dex bonus of +1 to AC and the tower shield +2. Now, can I get both the +1 AND +2 to get a +3 dex ...
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2answers
885 views

How does the abstraction of AC make sense when flat-footed?

I am looking for a rule-wise explanation of the logic as to why your deflection bonus (e.g. a shield) is counted in your flat-footed AC. From what I understand, being flat-footed means you didn't see ...
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3answers
306 views

AC calculation with a Defense Fighter + Shield + Defensive duelist

I try to create a lvl 4 character with a lot of AC. I'm not sure if it's ''legal'' So here it is: Studded leather armor : 12 AC Dex mod : +3 Shield + 2 AC Fighter Defensive style : +1 Ac Feat ...
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Are there items that can be worn under/in addition to armor that grant AC bonuses?

Pretty self-explanatory; I began wondering this when I misread the description of Mithral Shirt and thought it could be worn on the body slot in addition to existing armor to grant additional AC ...
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1answer
81 views

How does the AC value of helmets in Player's Option: Combat & Tactics work?

Page 128 of Player's Option: Combat & Tactics (book number 2149) gives an overview of the Armor Class of various types of armor and pieces of armor so you can assemble your own suit of armor. ...
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1answer
755 views

Is Magic Armor with an Enhancement Bonus over 4 Automatically Masterwork Armor?

Motivation After seeing this comment, I read this answer and this answer. This gave me the distinct impression that any magic armor with an enhancement bonus of +4 or more is automatically ...
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1answer
126 views

Anydice formula to calculate hit percentage against AC 5-25

I'm trying to create what I think is a simple formula in Anydice and struggling to figure it out. I roll a 20-sided dice, add a number x, and want to know the odds that the number will be greater or ...
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0answers
2k views

How does Dragon Hide interact with monk AC? [duplicate]

Before I begin let me preface this with the following: I understand that mechanically speaking the barbarian and Monk armor classes are calculated 10 + Dex mod + Wis/Con depending on the class played. ...
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1answer
701 views

Does a (homebrewed) Tortle's Natural AC stack with worn armor?

The tortle race on dandwiki has a feature called Shell which states that it has 14 + your constitution modifier natural AC. It doesn't stack with unarmored defense but if I were, for example, wearing ...
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1answer
3k views

Do AC bonuses from spells stack with AC from equipment?

For classes like the Bloodrager that can wear armor and shields and cast arcane spells: Does the armor bonus to AC from the Mage Armor spell stack with the armor bonus to AC from an actual armor worn ...
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1answer
447 views

Some creatures have unbelievably high ACs in the 40s, but how is that even possible to hit? [closed]

I'm looking at creatures in the d20 SRD and seeing monsters that have really high AC, like 45. Is that the correct AC or is it supposed to be something else? And if it is correct, then how is anyone ...
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454 views

My Paladin's AC seems way too good. Did I do something wrong?

It's been a couple of decades since my pal and I played first edition AD&D. We recently rolled characters for a new game, but I'm not entirely certain I did my human Paladin's armour class right; ...
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1answer
340 views

Do Storm Giants have a Natural Armour value?

A Storm Giant's AC is 16 due it its scale mail, and it has a Dex modifier of +2, so without the scale armour the giant's AC would be 12. However, a Cloud Giant has a Natural Armour of 14 and a Dex ...
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1answer
101 views

Does an enemy lose its Dex bonus to AC if it has a miss chance against me?

If I am invisible, the enemy loses its Dex bonus against me, and has a 50% miss chance. If I use Displacement, it also has 50% miss chance against me. Does it also lose its Dex bonus against my ...
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2answers
3k views

How does Wild Shape work with special ways to calculate your AC?

Among the effects of Wild Shapes, these two: Your game Statistics are replaced by the Statistics of the beast, but you retain your alignment, personality, and Intelligence, Wisdom, and Charisma ...
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1answer
138 views

What other actions is Total Defense referring to when it says it can't be combined with other actions that increase your AC?

Total Defense states: You can defend yourself as a standard action. Starting at the beginning of this action, you get a +4 bonus to your Armor Class until the start of your next turn. You can’t ...
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1answer
748 views

Do clerics lose the shield bonus while casting a spell when they provoke an AOO?

Im building a cleric and I am confused about clerics and shields. I did have another question but found it answered here. My remaining question is when a cleric casts a spell while holding a light ...
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1answer
1k views

AC Bonus Class Feature [closed]

Other than Monk, Swashbuckler, and Brawler, what are some classes that give you an AC bonus from having the class?
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1answer
152 views

Do the AC penalties from a lunge attack and the Samurai's Challenge stack?

If I use the Samurai's Challenge ability against an opponent (−2 AC except for attacks from my target), and use lunge to attack them (−2 AC until my next turn), do these two penalties ...
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0answers
57 views

Highest AC in 5e [duplicate]

In dnd 5e the highest possible AC that I know of that you can get would be 22, in a Barbarian build with 24 in constitution and 20 to in dexterity using Unarmored defense. Is there any way to get a ...
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392 views

Mage Armor + Unarmored Defense? [duplicate]

Playing a barbarian, and thought the Magic Initiate feat would be a good way to grab some range cantrips and a single-use utility spell. Originally thought of going with warlock, but DM suggested I go ...
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1answer
3k views

Does Jack of all trades affect AC?

I have seen many questions on the web related to Jack of All Trades, revealing facts new to me such as that it adds to initiative, on account of being an ability check which Jack of All Trades indeed ...
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2answers
17k views

How do you calculate a warforged barbarian's AC?

I am looking at the warforged AC calculation from the Integrated Protection feature, looking only at Darkwood Core (unarmored), for a possible warforged barbarian. (I am using the version of the ...
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1answer
2k views

In D&D 5e is it possible to add a breastplate to leather armor for an AC bonus? [duplicate]

I just started playing D&D, and I'd like to know if it is possible to add a breastplate to leather armor for an AC bonus?
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6k views

Is Dexterity proficiency modifier added to AC? [closed]

I'm playing as a bard that has a proficiency bonus that's added to Dexterity. When calculating the character's Armor Class, do I add only the base Dexterity modifier or do I add the base Dexterity ...
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1answer
2k views

Would the shield spell stack with shield enhancement when it replaces the shield bonus?

When you use a shield and it has an enhancement value, both of these are added to your AC. Normally when you use the shield spell, it tends to have a better bonus than the shield you are using so it ...
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1answer
970 views

What defines an armor?

There are some spells and perks that require not having armor on to work, so how is armor defined? Is it just any equippable gear that has additional AC? Is it anything more durable than regular ...
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1answer
1k views

How does the AC bonus from things like Ring or Cloak of Protection work with Touch AC?

How does the AC bonus from things like Ring or Cloak of Protection work with Touch AC? I know that when something targets Touch AC you don't add the AC bonus from Armor or Natural Armor but retain ...
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3answers
82 views

What is the AC of a Wall of Bone?

The spell Wall of Bone details a number of statistics about the sections of wall created, including HP, but the description says nothing about AC. It is based on Wall of Stone but that spell does not ...
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3answers
153 views

What feats or another options can help to avoid touch attack?

If character have only 10 DEX, he becomes vulnerable for touch attacks, because this kind of attacks don't count the armor. What feat i can take, or what i must do to avoid this attacks, or at least ...
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75 views

Possibility of DND 5e AC buld-up [duplicate]

I read in the DND 5e player's handbook about AC and I'm confused if my build is ok or not. I'm trying to create lvl 4 character with a lot of AC with a light armor. So here it is: A Tabaxi, Fighter ...
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601 views

Does magic armor grant an enhancement bonus to its armor bonus, or directly to your AC? [duplicate]

My previous assumption was that magic armor and magic shields gain an enhancement bonus to their own armor/shield bonuses, which indirectly translates to increased AC. However, in the process of ...
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584 views

How is the Cost of armour affected by the armour's attributes such as AC and type?

The 'Armor and Shields' section of the Player's Handbook lists the AC and Cost of armour and shields. The top end of each armour type (Light, Medium, Heavy) is substantially more expensive than the ...
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5answers
478 views

Is there anything that prevents this “Negative AC armor” creation process to function?

This is a follow-up to a portion of this answer to a previous question of mine pertaining to the lowest possible achievable AC. The question is also slightly different as it pertains to magical armor ...
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2answers
5k views

How much of my dexterity modifier can I add when wearing scale mail?

In the 5th edition of Dungeons & Dragons scale mail armor has an AC of 14 + Dexterity bonus (max 2). Does this mean that I can only add 2 from my Dexterity modifier even if it is higher?
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What is Armor Class used for?

I have never understood or found any answer to how to use your AC. Is it something the GM have to keep in mind all the time to reduce or add damage to specific players based on how high their AC is, ...

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