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 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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Does the Wisdom modifier apply on a lizard-monk's armor class? [duplicate]

Lizardfolk is a PC race from the book Volo's Guide to Monsters. The Players Handbook says (Monk): Beginning at 1st level, while you are wearing no armor and not wielding a shield, your AC equals ...
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1answer
447 views

Do unfettered defense and canny defense stack?

I would like your opinion on basically what I've asked in the title. The rules presented are as follows: Duelist: Canny Defense (DMG 185): When not wearing armor or using a shield, a duelist adds ...
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Do Mage Armor, Robes of Archmagi, and Dragon Mask stack?

Would the spell mage armor stack with robes of the archmagi and/or the dragon mask from HotDQ?
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Is the UA Warforged considered to naturally be wearing armor?

I know Warforged are Unearthed Arcana races, and considered in play testing and/or incomplete, but based off of the information available to Warforged, would you consider a Warforged to be wearing ...
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1answer
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What is the base AC when not wearing Armor?

Background Several character classes do not typically or cannot wear armor. Sorcerer, Monk, Wizard, Barbarian. Monk, Barbarian, and even draconian ancestry sorcerer have unarmored defense perks that ...
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1answer
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Does a monster's AC change when it doesn't use its shield?

Every monster has a specific AC in its stat block. The rules don't explicitly say anything like "subtract 2 from AC if the creature doesn't use a shield", do they? Does that mean a monster always has ...
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3answers
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Does an unconscious creature still use its dexterity to avoid attacks?

Related - How does one dispatch a helpless opponent? Here's the unconscious condition description: Unconscious An unconscious creature is Incapacitated, can't move or speak, and is unaware of ...
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Are there other modifiers to AC?

My knowledge of D&D is primarily 3.5. In that edition, there were many modifiers that affect AC, Natural Armor, Deflection Modifier, Dodge Bonus, Insight Bonus, Luck Bonus, and Sacred Bonus. I ...
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Is there Touch AC and/or Flatfooted AC in 5th Edition D&D?

Does D&D 5E have a mechanic similar to Touch AC or Flatfooted AC as it exists in D&D 3.5? To put it simply, in D&D 3.5, touch AC excludes armor bonuses when armor can't help against an ...
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Will adding helmets unbalance the game?

I can't find any mention of a helmet in the Player Handbook in the armour table, and the only helmets I can find are magic items like The Helm of Telepathy. Would it be unbalanced to allow helmets to ...
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Does rolling AC to oppose an Attack Roll impact game balance?

I really like the concept of rolling d20 against each other during ability checks like grappling, etc. I want the same thing for normal attacks, so the defender would also roll a d20 + (AC-10). Would ...
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2answers
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Does Size Affect AC?

I have been playing 3.5 for 6 years now and am trying out 5e. Does size affect AC in 5e? In 3.5 a tiny creature would get a bonus to their AC for being smaller, while a huge creature would get a ...
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Pathfinder's Armor Class to Damage Reduction variant in 5e

I've been DMing Dungeons and Dragons for more than 20 years, and have always had "issues" with the AC system. I was pretty happy when I found the AC as Damage Reduction Variant in the PF Combat ...
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1answer
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How much AC do you need for it to remain relevant per level?

While I can't find the exact place, I remember someone once saying that AC to be considered a tank went something like: Level 1: 18 Level 5: 25 Level 10: 30-35 Level 15: 40 Level 20: 50 Or something ...
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601 views

Does natural armor of Sorcerer stack with lycanthropy?

My question is whether natural armor of a Sorcerer gained by Draconic Resilience (13 + Dex modifier) does stack with the bonus on natural armor by, e.g., the werebear template ('a +1 bonus to AC while ...
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Average AC of monsters per CR?

In D&D 4e, you could tell most monster's AC just from its level and role (Brute, Skirmisher, Soldier). This is not the case in 5e, but an estimation would be very useful when you try to compare ...
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765 views

Do monsters need to don the shields in their stat blocks?

PHB page 146 says that donning and doffing a shield takes 1 action for PCs. However I did not find anything about monsters. For example, a goblin (MM page 166) wears both a leather armor (AC 11 + ...
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How does the AC bonus of a Monk's belt work when worn by a non-monk?

The monk class states: AC Bonus (Ex): A monk is highly trained at dodging blows, and she has a sixth sense that lets her avoid even unanticipated attacks. When unarmored and unencumbered, the monk ...
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How does a DM deal with a PC with an abnormally high Armor Class?

One of the Fighters in my party has an AC of 21 at level 5. He wears chainmail which gives an AC of 16, has the Defense Fighting Style which gives a +1 to AC when wearing armor, and a +2 shield (found ...
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Does the AC bonus of the Haste Spell apply to Mirror Image?

Considering the fact that the +2 increase to a creature's Armor Class from the Haste spell is reasonably a result of the creature being "sped up" and thus having faster reflexes and dodging attacks ...
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Is trading +1 AC for -9 Max HP a good deal for a level 7 fighter?

During a recent dungeon, my character received wounds that were filled with a magical metal. The GM ruled that these wounds gave my character +1 AC and -9 Max HP until cured. My question is: should I ...
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Can the AC bonuses of Bracers of Defense and Black Dragon Mask (HotDQ) stack?

I currently I am playing as a Draconic Sorcerer in our campaign. The group found the following items and I am the only one that can use them for their AC bonus abilities: Bracers of Defense (DMG page ...
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Ranger Attack Bonus seems too high

I'm DM for my group of friends and have a question about our Ranger. He was level 6 last session, and had a +11 to hit. +5 from DEX, +3 prof, +2 from Archery style, and +1 from his bow. Against the ...
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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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How is final AC calculated when you have a Natural AC and an Armored AC?

I'm making a vampire player character, with a little bit of homebrew to give it some of the 5e vampire traits without being broken, and one of the traits that I'm carrying over is natural armor of 16. ...
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755 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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What's the AC of the contents of a sack?

An archer sees a motionless, unattended sack in the forest. He shoots it with an arrow from a short bow. He does not know the contents; he's just shooting at the sack in general. There are potions of ...
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Do the AC Bonus (Ex) class abilities of monks and swordsages stack?

Monk and Swordsage both get the class feature AC Bonus (Ex). Monk: When unarmored and unencumbered, the monk adds her Wisdom bonus (if any) to her AC. In addition, a monk gains a +1 bonus to AC ...
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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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1answer
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Can a Helmet Provide an AC Bonus to a Beheaded Familiar?

Background I recently gained a Beheaded Familiar with the Improved Familiar feat. Since it has a slam attack, and is tiny, it would provoke attacks of opportunity to attack with said slam attack. ...
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Where do I find a monster's AC bonus from high dexterity?

There are a couple of ways for a creature to lose its dexterity bonus to armor class. I am used to 3rd/4th/5th monster manuals, where dexterity values are given, but in AD&D 2e I can't find those ...
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How does the AC evolve with high levels?

I am currently DMing a group with an average level of 10. This is my first experience as DM so I have never mastered high levels. Current ACs are reasonably high at the moment (22 for the Paladin with ...
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1answer
382 views

Do you lose DEX AC bonus while standing in Grease

Do you lose your DEX bonus to AC while standing in the area of effect of a Grease spell?
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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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1answer
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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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Would the AC from a Sorcerer's Draconic Resistance combine with a Monk's Unarmoured Defence?

Reading from the Player's Handbook. If you pick a Sorcerer with the Draconic Bloodline you get a base AC of 13 (as long as you wear no armour, page 102). If you multi-class that with a Monk you get ...
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1answer
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What AC do Bracers of Defence count as for the Weapon Type vs. Armor Type rules?

How do Bracers of Defence affect Base AC in regards to Weapon type vs. Armor type? I play in a campaign that is centered around the Player’s Option series (which might be considered 2.5th edition) ...
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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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452 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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Can a monk “wear” Mage Armor without losing their wisdom bonus to AC?

Can a monk use mage armor without losing their wisdom bonus to AC (in 3.5e)? More generally, can a divine caster wearing a monk's belt use greater luminous armor without losing their wisdom bonus to ...
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Does the Lizardfolk NPC template's bonus to AC apply when armored, or only when unarmored?

DMG p. 282 gives guidance for modifying NPC stat blocks to adapt them for specific monster races. For lizardfolk, one of the listed modifications is a "+3 natural armor bonus to AC". A friend and I ...
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Is my DM being too severe? [closed]

I want to know if my GM is being too harsh on us, as this is our first adventure, so none of us are sure. My party just became level 9. I feel that as a party, our AC is low all around. For example, ...
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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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What AC is used when a prepared action is used to shoot something thats being thrown?

If an archer has prepared an action to shoot using a bow/crossbow/... when an alchemist is going to throw a bomb. What kind of check is it to hit the bomb as he is throwing it? I dont think you would ...
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When using a tower shields total cover ability, do you lose its AC bonus?

One of my players raised an interesting observation about how the tower shield is worded. In most situations, a tower shield provides the indicated shield bonus to your Armor Class. As a standard ...
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What is the highest possible AC?

Assuming you are level 20, and have access to any magic item, how high can you get AC (permanently or for a set duration)? Constraints: Magic items are those on the tables in the D&D 5th ...
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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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1answer
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How can I improve my Touch AC outside of increasing my Dex Mod?

I'm currently playing a LVl5 Caster Druid in a PVP arena, where the other players are quite fond of blaster type characters, and I tend not to last more then 2 or 3 rounds. While I'd like any ...
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1answer
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Do any of these sources of AC bonuses conflict or negate each other?

My understanding, confirmed by the answer to this question: When a War Caster Wizard carrying a shield casts the spell "Shield" does the AC bonus Stack? is that anywhere an actual +N bonus ...