Different types of AC bonuses [Archive] - Wizards Community

Post/Author/DateTimePost
kilos

12-20-04, 01:43 AM
Can someone give me the rundown of AC and an example place it comes from?

For example: Natural armor: from your races natural armor, a spell(barkskin), or amulet of natural armour.

Thank you for your concern and cooperation in this matter.
TheDragonmaster

12-20-04, 02:31 AM
Dexterity - Dexterity modifier, limited by armor
Size - Varies with size
Armor - Armor
Armor (Enchantment) - Magical armor, bracers of armor, Mage Armor
Shield - Shields
Shield (Enchantment) - Magical shields, Shield
Natural Armor - Racial adjustment, templates, Dragon Diciple
Natural Armor (Enchantment) - Amulet of natural armor, Barkskin
Deflection - Ring of protection
Luck - Stone of good luck
Insight - Some Ioun stone, don't know which.
Sacred - Some classes
Profane - Some classes
Dodge - Monk, Dwarven defender - This one stacks with itself.
Circumstance - Being prone, squeezing - This one stacks with itself.

In effect, you can make magic items with whatever bonus you want, as stated in the DMG (preferably not circumstance).
kilos

12-20-04, 03:00 AM
Awesome thanks a lot.
primemover003

12-20-04, 03:43 AM
Dexterity - Dexterity modifier, limited by armor
Size - Varies with size
Armor - Armor
Armor (Enchantment) - Magical armor, bracers of armor, Mage Armor
Shield - Shields
Shield (Enchantment) - Magical shields, Shield
Natural Armor - Racial adjustment, templates, Dragon Diciple
Natural Armor (Enchantment) - Amulet of natural armor, Barkskin
Deflection - Ring of protection
Luck - Stone of good luck
Insight - Some Ioun stone, don't know which.
Sacred - Some classes
Profane - Some classes
Dodge - Monk, Dwarven defender - This one stacks with itself.
Circumstance - Being prone, squeezing - This one stacks with itself.

In effect, you can make magic items with whatever bonus you want, as stated in the DMG (preferably not circumstance).
Just as a note some of the above is a little inaccurate.

An Armor bonus is an Armor bonus whether provided by a chain shirt, Full Plate, or the Mage Armor spell. There is no difference in the two other than the source of the bonus. Example, a suit of +1 chainmail has a +5 armor bonus (from the suit itself) and a +1 enhancement bonus. Enhancement bonuses stack on top of Armor, Shield, and Natural armor bonuses.

A Shield bonus is a Shield bonus whether provided by a Heavy steel shield, the Shield spell, or the Two Weapon Defense Feat.

A creatures Natural armor (from race) can be enhanced by certain spells and magic items. For example a Kobold (+1 natural armor due to race) can wear an Amulet of natural armor +1 to +5 and it'll stack as the "pluses" are enhancement bonuses.

Circumstance bonuses. They stack, but must come from different sources. Best example is Aid another.

A few you've missed:
Cover
Haste

Remember to use the term enhancement... not enchantment. It helps to avoid confusion.
TheDragonmaster

12-20-04, 04:59 AM
I'm sorry, primemover003, but I often mix those two words together. And about "forgetting", I was in quite a hurry. My archer characters often use various magical items for the body slots:

Armor - Bondleaf Wrap (AaEG)
Shield - Bracers of Shielding (Homebrew)
Natural Armor - Vestment of Natural Armor (The idea gotten from ELH)
Deflection - Ring of Protection
Luck - Amulet of Good Luck (Homebrew)
Insight - Headband of Foresight (Homebrew)
Sacred - Ring of Divinity (Homebrew)
Dodge - Boots of Haste and Speed (Striding + Haste )
Nom

12-20-04, 06:26 AM
Just as a note some of the above is a little inaccurate.

An Armor bonus is an Armor bonus whether provided by a chain shirt, Full Plate, or the Mage Armor spell. There is no difference in the two other than the source of the bonus. Example, a suit of +1 chainmail has a +5 armor bonus (from the suit itself) and a +1 enhancement bonus. Enhancement bonuses stack on top of Armor, Shield, and Natural armor bonuses.To nit-pick the nit-pick, an enhancement bonus enhances something.

In the case of a suit of +1 chainmail, the chainmail provides a total armour bonus of +6. +5 of the bonus is the chainmail itself and the final +1 is magic, but from the point of view of the user it's a +6 armour bonus.

Why is this important?

If someone cast mage armour on the chainmail wearer, their (normal) armour bonus would remain at +6. The enhancement on the chainmail only improves the bonus provided by the chainmail; it does not transfer to other armour bonuses in any way, form or manner. Likewise, casting magic vestment at level 8 on the chainmail provides a +2 enhancement bonus to the chainmail. Since it already has a +1, the total armour bonus provided by the chainmail rises from +6 to +7.


As an aside, the bonus from haste is a +1 dodge bonus. Also, you can fairly safely treat Dex bonuses as dodge bonuses. Although they are technically different, I cannot think of a situation where you can apply a Dex bonus but not a dodge bonus, or vice versa.
Egres

12-20-04, 07:35 AM
Just as a note some of the above is a little inaccurate.

An Armor bonus is an Armor bonus whether provided by a chain shirt, Full Plate, or the Mage Armor spell. There is no difference in the two other than the source of the bonus.
Actually there's a little difference.

From the SRD:

Unlike mundane armor, mage armor entails no armor check penalty, arcane spell failure chance, or speed reduction. Since mage armor is made of force, incorporeal creatures can’t bypass it the way they do normal armor
Addi83

12-20-04, 09:07 AM
Also, you can fairly safely treat Dex bonuses as dodge bonuses. Although they are technically different, I cannot think of a situation where you can apply a Dex bonus but not a dodge bonus, or vice versa.

How about when you are wearing armor with a maximum dexterity modifier, say you have dex 12 (+1) and are wearing a half-plate (max dex 0), that way you don't get to apply your dexterity bonus, but you can apply any dodge bonuses that apply.
primemover003

12-20-04, 04:23 PM
Actually there's a little difference.

From the SRD:

Unlike mundane armor, mage armor entails no armor check penalty, arcane spell failure chance, or speed reduction. Since mage armor is made of force, incorporeal creatures can’t bypass it the way they do normal armor
But it's still an Armor Bonus. The rest doesn't matter when we're talking about the source or name of the bonus in question.

Obviously the Enhancment bonus enhances something... it's the suit of armor. No duh! But what I said wasn't wrong. I just didn't extrapolate on it.
Zetakya

12-20-04, 04:29 PM
Related Question: What kind of bonus is the Monks Wisdom modifier to AC counted as? Insight?
Aracor

12-20-04, 04:44 PM
It's unnamed, which means it happily stacks with any other bonus type.

~Aracor
Egres

12-20-04, 07:01 PM
But it's still an Armor Bonus. The rest doesn't matter when we're talking about the source or name of the bonus in question.

Obviously the Enhancment bonus enhances something... it's the suit of armor. No duh! But what I said wasn't wrong. I just didn't extrapolate on it.
I didn't say you were wrong.

I only pointed out that there's a difference, a difference regarding the AC after all.
sapperland

12-20-04, 11:36 PM
If you have a ring of protection +2, will the spell "protection from evil" stack another +2 on your A/C vs evil? Or are these protection considered the same type and therefore not stackable?
What will sheild of faith spell not stack with?
Addi83

12-21-04, 01:17 AM
If you have a ring of protection +2, will the spell "protection from evil" stack another +2 on your A/C vs evil? Or are these protection considered the same type and therefore not stackable?
What will sheild of faith spell not stack with?


Just read the descriptions, if I'm not mistaken, all of these are deflection bonuses, and those don't stack. Thus, only the highest modifier is in effect at any time.
Greyman

12-21-04, 07:59 AM
Related Question: What kind of bonus is the Monks Wisdom modifier to AC counted as? Insight?No, it's just a Wisdom modifier to AC, and is treated the same as a Dexterity modifier to AC. It is fully stackable with every other modifier to AC.