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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3 votes
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Multiattack defense vs legendary actions

I have a question about DnD 5E Ranger Hunter Multiattack Defense feature. Should you or do you get Multiattack Defense against legendary actions? For example, when you get a bite and two claw attacks ...
22 votes
1 answer
3k views

How much would a +7 AC magic item be worth?

For context: A DM in this multi-DM run D&D 5e campaign I'm in said she would be doing very difficult sessions with very high level loot if we succeed in said sessions. Well, disregarding the fact ...
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6 votes
5 answers
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What would be the impact if I allowed Barbarian's Unarmored Defense to stack with Lizardfolk's Natural Armor?

I am going to preface this question with the fact that yes, I am well aware they are separate AC calculations that you choose between. I am simply posing a theoretical question that warrants deeper ...
5 votes
2 answers
773 views

Do bracers of armor stack with magic armor enhancements and special abilities?

I am aware that bracers of armor's armor bonus does not stack with the basics armour bonus, but I wonder: 1- does the armor effect of bracers of armor stack with the enhancement effect of an armor? (...
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-1 votes
1 answer
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Can the Speed magic-weapon-special-ability add +1 AC modifier as Haste spell?

Can the Speed magic-weapon-special-ability add +1 AC modifier as a Haste spell does? Here the description: When making a full-attack action, the wielder of a speed weapon may make one extra attack ...
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7 votes
2 answers
413 views

Does the AC bonus from artificer infusions affect the Shield Master feat?

The Shield Master feat contains this: If you aren't incapacitated, you can add your shield's AC bonus to any Dexterity saving throw you make against a spell or other harmful effect that targets only ...
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11 votes
1 answer
1k views

What bonuses are expected to be applied to armor class?

I found this list of bonus types: "Ability", "Armor", "Circumstance", "Insight", "Luck", "Morale", "Natural Armor", "Profane&...
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1 vote
1 answer
194 views

What is the armor class of a being in Gaseous form? [duplicate]

I was playing DnD 5e earlier today and one of my party members cast gaseous form upon itself and then got into a fight. While we know that the party member is currently protected from most forms of ...
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4 votes
1 answer
1k views

Natural Armor vs Mage Armor, which takes precedence?

I'm already aware of the interaction between Mage Armor and features that grant an alternative AC calculation such as a Monk or Barbarian's Unarmored Defense, or simply wearing Armor. However I haven'...
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2 votes
2 answers
300 views

How can I maximise my social skills without sacrificing armour class as a Monk/Ranger (Fey Wanderer)?

I have a level 10 character (Monk/Ranger Fey Wanderer) in mind that I would want to make head of time, ready for a future game (should the opportunity arise). The Fey Wanderer at level 3 gets '...
9 votes
2 answers
1k views

Is there a way to add my Strength modifier to my Armor Class?

It's an age old question -- how can I make it as hard as possible for enemies to hit me, so I can slaughter them without even the slightest jostling of my coif? Typically, for those wanting to proceed ...
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6 votes
1 answer
185 views

Do Bracers of Defense stack with a shield?

In AD&D (1e or 2e) would Bracers of Defense stack with a shield? The relevant text from the AD&D DMG (p. 139) is: Their magic bestows an effective armor class equal to actually wearing armor ...
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8 votes
2 answers
1k views

If a level 7 Beast Master Ranger equips their Primal Companion with chainmail barding what is the new AC?

If a level 7 Beast Master Ranger were to give their Beast of the Land Primal Companion barding armor, what is the new Armor Class? For example let's use chainmail barding. It seems that the new AC ...
5 votes
2 answers
2k views

Do bonuses to AC stack?

The Warforged get +1 to AC from their Integrated Protection feature. The forge domain cleric can use the feature Blessing of the Forge to enchant their armor for another +1 to AC. The Soul of the ...
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4 votes
2 answers
698 views

Is this unarmored defense option balanced

One of the conceits of a campaign I am running is that in some areas classes like the fighter or paladin would not rely on heavy armor. Is the following option balanced? Unarmored Warrior ...
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3 votes
2 answers
2k views

As a Fairy Rune Knight, what are my options for being strength based and still having a good armor class?

The Fairy race, first printed in the adventure Supplement Wild Beyond the Witchlight, is a flying race that has the following restriction on the use of its flying speed: Because of your wings, you ...
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6 votes
1 answer
662 views

My player character is wearing 2 types of armor, how do I decide which calculation is the one to use?

I've read the other questions about stacking AC which I know can't be done according to the rules, but then the rules also say that you can wear chain shirt under leather, so it contradicts itself ...
5 votes
2 answers
241 views

I want to know how my 5e homebrew compares to RAW, but don't really know where to begin [closed]

Alright, strap in because I've got an overly complex homebrew that I want to see how it compares to RAW. The problem is that I don't really know where to start this comparison or how to make it easier ...
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8 votes
1 answer
4k views

In the first "Eye of the Beholder" game, does lower AC mean the target is harder to hit?

I am not sure whether character adjustment in the first Eye of the Beholder game works accurately. I see that AC depends only on DEX: DEX AC (Human Male) 3 14 4 13 5 12 6 11 7–14 10 15 9 16 8 ...
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2 votes
2 answers
930 views

Best option after attuning to Shield of Missile Attraction

Let's say the party tank has picked up, and attuned to, a Shield of Missile Attraction, which states the following: While holding this shield, you have resistance to damage from ranged weapon attacks....
9 votes
5 answers
3k views

Is this homebrew magic item that lets you add your Wisdom modifier to your AC (while attuned) balanced as a rare magic item?

I recently had an idea for a new item in 5e. This item is a cloak that lets you add your Wisdom modifier to your AC (requires attunement). I was thinking of making it a rare magic item, and I was ...
15 votes
2 answers
3k views

Is it true that Reckless Attack renders AC boosts less effective?

I saw someone arguing recently that A) Barbarians should always RA. and B) Assuming A) is true ... then it's a waste of time for a Barbarian to try to boost their AC. I assume that the case for B) is ...
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9 votes
2 answers
2k views

How does the Armor of Agathys spell interact with characters in heavier armor?

New DM here. I have a player running an Oath of Conquest paladin. He makes a pretty convincing argument that as he increases his armor class, he becomes harder to hit, and Armor of Agathys triggers ...
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5 votes
1 answer
768 views

Are there any ways for a martial class to reduce an enemy's armor class?

I recently had a player express interest in playing a martial character (d&d 5e) who could somehow reduce an enemy's AC. My understanding is that the flavor they were going for is based on things ...
6 votes
1 answer
2k views

Can you stack AC bonuses with an Artificer's Infusions?

Can you stack AC bonuses with an Artificer's Infusions? I get that you can't use the same Infusion on multiple items. However... does the Enhance Defense Infusion and Repulsion Shield Infusion stack ...
6 votes
3 answers
2k views

Does magical armor enhancement bonus increase the armor’s maximum dexterity?

Do magical armor enhancement bonuses increase the maximum DEX mod allowed for an armor? If so, awesome! If not, are there other ways to optimize AC through a DEX driven character?
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19 votes
5 answers
3k views

Spread out AC or consolidate?

Imagine a Party with 4 characters. Each one has different AC: 14 AC/48 HP (squishy caster) 15 AC/50 HP 16 AC/50 HP 17 AC/54 HP (the tank) The Party picks up a Ring of Protection +1. Who "should&...
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3 votes
0 answers
82 views

How to calculate constitution based armor class for a Loxodon barbarian in 5e? [duplicate]

Loxodons have natural armor that is calculated using "12+con_mod" Barbarians have unarmored defence calculated using "10+dex_mod+con_mod" One of my players wants to be a Loxodon ...
5 votes
1 answer
332 views

Apply force armor from mage armor/inertial armor/etc. against touch attacks?

I want to cast a spell or manifest a power that provides a +4-or-greater bonus to AC that lasts hours/level or longer, and have it apply to touch attacks. The mage armor, luminous armor, and greater ...
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18 votes
5 answers
3k views

How can I reliably increase our giant ape's AC to 16 (or better)?

A tactical problem to solve based on last night's session Tactical Situation Wizard polymorphs warlock (8th level) into a Giant Ape. (Did T-Rex last time, looking for variety and higher INT (7 vs 2); ...
27 votes
9 answers
7k views

Can you lower your AC on purpose?

For roleplaying reasons I would like to make a NPC appear weaker than it actually is. When the players first fight it, it should seem to have a very low AC and miss many attacks. Is this possible in ...
10 votes
1 answer
829 views

Summon spells and AC

The summon spells introduced in Tasha's Cauldron of Everything include an armor class calculation, but it's unclear from the description if the AC should include the dexterity modifier or not. For ...
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7 votes
1 answer
512 views

Are there any rules or guidelines that demonstrate how many hit points an increase in AC is worth?

I am trying to determine if I should increase the base hit points, or the starting AC for my monsters to make them a bit more challenging for my players due to the size of the party (7-8 players). Is ...
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5 votes
1 answer
424 views

Does wearing magic items with armor affect AC negatively?

If I’m wearing a set of full plate armor and I replace the gauntlets with gauntlets of ogre strength do I lose the AC provided by the full plate as I’m no longer wearing a full set of full plate ...
3 votes
1 answer
201 views

What is the chance of being hit?

As a companion to this question, what is the expected chance of being hit by an average monster of your level?
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23 votes
1 answer
1k views

Is Armor Class a difficulty class (DC)?

Frightened talks only about DCs: [...] You take a status penalty equal to this value to all your checks and DCs [...] Compare it to Clumsy: [...] You take a status penalty equal to the condition ...
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6 votes
2 answers
1k views

Does losing Dex to AC also apply to CMD?

Relevant rules: CMD: ...Any penalties to a creature's AC also apply to its CMD. A flat-footed creature does not add its Dexterity bonus to its CMD... blind: ...The creature cannot see. It takes a –...
6 votes
3 answers
3k views

Natural 20 vs higher AC

If a character or creature has an AC that with all bonuses requires a 20 to hit does that mean that every hit is a crit? Or alternately the creatures AC is so high that with all bonuses no hit would ...
4 votes
0 answers
495 views

How does defense work? [closed]

I'm new to D&D and I want to make a new character, he is a warlock with 11 hp and 13 armor class. What should I do when I get attacked? Damage - defense? I don't have the books, I'm using D&D ...
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49 votes
8 answers
12k views

How do I explain to an AD&D player that items that increase Armor Class in D&D 5e are overpowered?

Context: I have recently started a campaign with a new player that comes from an AD&D background. He wishes to convert and import his character to the campaign. We did this once, and I helped him ...
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0 votes
1 answer
973 views

What is the AC of a sprite familiar (from the Find Familiar spell) if it is dismissed to a pocket dimension and then caused to reappear as an action?

The most recent Sage Advice Compendium erratas the find familiar spell so that familiars are now stripped naked when dismissed to a pocket dimension. The Pact of the Chain warlock can summon a Sprite ...
-7 votes
2 answers
3k views

Can a character wear both chain mail and leather armor to get a higher AC?

Background I am reading the Goblin Slayer light novel. In it the main character wears leather armor over plate or chain to both stack his AC and to confuse his (not very intelligent) enemies into ...
4 votes
4 answers
2k views

What can a dragon use to increase their armour class? [closed]

It is hard to survive as dragon - and yet they do. Despite being known for their nasty claws+bite, fear radiance and breath weapon - thus becoming a high priority target for nearly any ranged attack - ...
5 votes
1 answer
750 views

Can you stack dodge modifiers?

You can choose the Combat expertise feat and the Dodge feat. Both of them grant dodge modifiers to Armor Class. Are their Armor Class modifiers stacked?
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6 votes
4 answers
9k views

How to open a door with AC 15, 18 hit points?

I'm learning to play D&D and I'm following the Frozen Sick adventure from D&D Beyond. At some point, the players need to open a door with "AC 15, 18 hit points". I think AC means ...
11 votes
2 answers
2k views

What is the AC equivalent of mirror image?

It is suggested (by the DMG) to account for defensive options by assuming increased AC, e.g. +2 AC for magic resistance. I would like to give some of my monsters the spell mirror image as part of a ...
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7 votes
1 answer
3k views

Does the +1 AC bonus from the Warforged racial trait Integrated Protection and the Forge Domain cleric's Blessings of the Forge stack?

The Warforged race (from Eberron: Rising from the Last War, p. 36) has a racial feature called Integrated Protection, which among other things, grants the following: You gain a +1 bonus to Armor ...
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3 votes
1 answer
110 views

Against which AC do you check on the strikes of the Tiger Claw discipline?

As the title says. If, let's say, I catch my opponent flat-footed and use Claw at the Moon, do I check against flat-footed AC or complete AC? Claw at the Moon: As part of this maneuver, you attempt a ...
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4 votes
1 answer
549 views

How to convert armour class from Pathfinder 1 to D&D 5?

My sandbox game uses some material from Pathfinder (and D&D 3 and 3.5). I run games there using D&D 5 (among other rules systems). How do I convert the armour class of a creature (especially ...
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7 votes
1 answer
275 views

Which hybrid classes give alternative ways to calculate AC?

In D&D 4e some hybrid classes provide alternative ways to calculate AC. I know about Hybrid Runepriests (Serene Blade) using Wisdom. What other class-ability combinations are there?
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