The D&D mechanical abstraction of how difficult it is to hit and cause damage to an opponent.

learn more… | top users | synonyms

1
vote
1answer
89 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 ...
1
vote
1answer
247 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 ...
6
votes
1answer
477 views

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 ...
3
votes
3answers
248 views

Does the Lizardfolk NPC race's bonus to AC count for all armor

Me and a friend are arguing over whether or not the Lizardfolk NPC race in the DMG get a bonus to AC while wearing armor or a natural AC bonus. So my question is, does the Lizardfolk bonus to AC apply ...
4
votes
2answers
681 views

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, ...
1
vote
2answers
278 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; ...
5
votes
2answers
397 views

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 ...
8
votes
2answers
239 views

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 ...
2
votes
3answers
419 views

Do I still get the AC bonus from a shield if I use a 2 handed weapon?

Do I get the +2AC from a shield if it stays on my back all the time? Another way to look at it: If I use my Versatile weapon as two-handed, does my AC go down? I'm still proficient in all my gear, ...
-11
votes
2answers
341 views

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, ...
3
votes
1answer
229 views

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 ...
1
vote
1answer
289 views

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 ...
6
votes
1answer
104 views

Does the Armor Class of a potion vial include the users Dexterity modifier?

Page 478 of the core rulebook states: A typical potion or oil consists of 1 ounce of liquid held in a ceramic or glass vial fitted with a tight stopper. The stoppered container is usually no ...
13
votes
3answers
3k views

Combining various AC-providing clothing and armor

Are there any rules for combining different clothing/armor for providing AC? For example, can an adventurer wear full plate and bracers and get the AC bonus from both? Can an adventurer wear a Cloak ...
2
votes
2answers
3k views

When using a breath weapon do I roll against armor class?

In the 5e D&D player's handbook, the Dragonborn's Breath Weapon says: The DC for this saving throw equals 8 + your Constitution modifier + your proficiency bonus. A creature takes 2d6 damage ...
3
votes
2answers
2k views

Charisma Mod to AC?

Is there a way to get your Charisma Modifier to AC other than different revelations* for oracles? I've been looking through the content on the PFSRD and can't find one. I'm hoping there might be ...
1
vote
1answer
67 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 ...
7
votes
2answers
955 views

Does the Monk retain his AC Bonus if he loses his Dex bonus to AC?

Does a monk retain the AC bonus from the AC Bonus (Ex) class feature if he loses his Dex bonus to AC? It says he retains it if he's flat-footed, but there are other ways to lose your Dex bonus to AC.
4
votes
1answer
768 views

Can I benefit from magical armour while using Mage Armour?

A suit of Studded Leather sets AC to 12 + Dex. A suit of magical +1 Studded Leather gives a +1 bonus to AC while you wear it, for a total of 12 + Dex +1. Mage Armour gives an AC of 13 + Dex. This is ...
3
votes
1answer
229 views

Does the enhancement bonus on armor apply to armor class?

If I have a chain shirt with spell resistance 19 (+5 bonus), does that +5 apply to armor class along with the +4 from the chain shirt?
3
votes
3answers
631 views

Armored Wisdom to AC

Is there any combination of races, classes, items, or feats that allows you to add your Wisdom bonus to AC, without restricting the armor that you wear? Several classes offer Wisdom to AC while ...
4
votes
6answers
1k views

Is your character's ability to avoid attacks based solely on AC?

I'm new to D&D. I was wondering about a character's ability to dodge attacks that target them. Is AC the only way for a character to avoid being hit, or is there something else that I've ...
10
votes
2answers
2k views

Does an Enhancement bonus on clothing become an Armor bonus?

Given this discussion I had here about combining Magic Vestment and Coat of Many Stars: Targeting what you're wearing would get you two different, non-stacking sources of Armor bonus. – Zachiel ...
8
votes
3answers
4k views

Can Monks gain the benefit of the Dual Wielder Feat with their Unarmed Strikes?

Simply put - can the Monk class use the Dual Wielder Feat with: A (monk) weapon and an unarmed strike? An unarmed strike "in each hand"? Admittedly this is a similar question to this post about ...
7
votes
3answers
595 views

What is the AC of an inanimate object?

In D&D 5e, what is the AC of an inanimate object, in case someone wants to attack it? Does it depend on its size? Is it different depending on whether you are making a ranged or melee attack?
10
votes
3answers
27k views

What exactly is “base AC”?

The phrase "base AC" appears in the D&D 5E basic rules exactly once, in the description of the Mage Armor spell. This says: The target’s base AC becomes 13 + its Dexterity modifier. But ...
5
votes
1answer
439 views

What methods exist to get your AC higher than 20 without magic items?

I was poking around answering for this question and noticed something odd. It doesn't seem to be possible except in the case of the Barbarian to naturally get your AC over 20 without the use of magic ...
11
votes
1answer
2k views

Does Mage Armor stack with Shield?

Mage Armor sets the target's base AC to 13+Dex. Shield gives you a +5 bonus to AC. If you cast both on yourself, does that give you an effective AC of 18+Dex while both spells are in effect?
1
vote
1answer
331 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 ...
11
votes
2answers
2k views

How to improve AC when it's so low that enemies hit on 3–5?

The AC of my character is falling far behind her other defenses, and I'm wondering if I have missed out on something basic and important. I am going to post some of her stats as an example to this ...
15
votes
9answers
9k views

Is AC really as powerful as I think it is?

My understanding of AC is that an enemy must roll higher than your AC to take any damage on you. However, if this is the case, wouldn't a player only need an AC higher than 20 to be invincible? I am ...
2
votes
2answers
1k views

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 ...
0
votes
1answer
6k views

D&D Next (Final Playtest): Proficiency bonus and armor?

Do you get a proficiency bonus to AC when wearing armor you are proficient with?
16
votes
2answers
13k views

In what situations would a target be denied a Dex bonus to AC?

I have an encounter coming up where my PCs will face a high level rogue. Naturally, I'd like to use his sneak attack ability, but I've never played a rogue before so I'm light on experience. From the ...
7
votes
1answer
285 views

Does Armor have a base +1 AC if made for tiny creatures?

According to the Armor for Unusual Creatures table, tiny or smaller creatures receive half the AC from armor. So what happens to the armor bonus when the armor bonus is only +1? For example, Gnome ...
7
votes
2answers
886 views

Armor as DR alternate rules: Do untyped AC bonuses apply to Defense or DR?

I'm starting a Pathfinder Campaign with the alternate rule for armor as damage reduction. I'm just wondering what gets changed to damage reduction and what stays defense. For example, a shield's AC ...
7
votes
2answers
7k views

Armor's effect on skills

If I read this correctly then it means that the armor I choose will affect my Dex and Str based skills. Any armor heavier than leather, as well as any shield, hurts a character's ability to use ...
3
votes
2answers
2k views

Plate armor question

I was playing around with the Character Builder and noticed an oddity with my level 7 half-orc Knight: My character with no armor has a net AC of 16 [10 +3 (half level) +2 (heavy shield) +1 (dex)]. ...
12
votes
5answers
12k views

How do you calculate THAC0?

So, I get what THAC0 stands for (To Hit Armour Class 0) but it's not something I ever used when playing way back when - we just pored over the to hit tables all the time, manually worked out ...
12
votes
2answers
3k views

How does __(Dexterity) vs. AC work?

I'm working through the new Red Box, and have ended up with a character with the at-will Bump And Run power. The attack is listed as __ (Dexterity) vs. AC Is this just a straight comparison of ...