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Armor class

From NWNWiki

Armor class (AC) is a number representing a creature's ability to avoid being hit in combat. An opponent's attack roll must equal or exceed the target creature's AC to hit it.

AC = 10 + armor bonus + shield bonus + dodge bonus + natural armor bonus + deflection bonus + other bonuses

The average, unarmored peasant has an AC of 10.

Contents

[edit] AC types

Only dodge bonuses stack, up to a maximum of +20. For all other types of bonus, the single highest modifier is applied.

A polymorph form may convert some item AC bonuses to separate deflection AC bonuses that do not stack, though the item property haste will still give a +4 dodge bonus if it is included in the merge. All other item AC bonuses it will ignore. The polymorph may also give a dodge bonus and, more rarely, a deflection bonus to AC. All of this AC pertains to the corresponding +20 cap and only the dodge stacks. There also may be a change to the AC from the new size modifier according to the size of the polymorph.

[edit] Armor class guide

As above, there are several types of armor class in Neverwinter Nights; some will work together (i.e., stack) and some will not. Knowing what stacks and what doesn't can often mean the difference between useful equipment and useless equipment.

Below are 6 AC categories; the 5 that NWN uses (natural, armor, shield, deflection, dodge), and one extra "other" category to hold the bonuses that do not fit into the 5 base categories. All these categories will stack together, and ultimately sum together to form a character's total AC.

[edit] Sources of natural AC

These will not stack with each other; the highest one is used. **

[edit] Sources of armor AC

These will not stack with each other; the highest one is used. **

[edit] Sources of shield AC

These will not stack with each other; the highest one is used. **

[edit] Sources of deflection AC

These will not stack with each other; the highest one is used.

[edit] Sources of dodge AC

These will stack with each other, but is limited to a +20 maximum dodge bonus. *

All dodge AC is lost when caught flat-footed (even if the character has the uncanny dodge feat).

[edit] Other sources of AC

These are all individual sources, and stack together with no restrictions.


* The dexterity bonus to AC, dodge, and tumble AC benefits are lost when caught flat-footed, but the uncanny dodge and defensive awareness feats allow the dexterity bonus to be retained.

** The armor, shield and natural AC provide no benefit when subject to a touch attack.

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