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Armor check penalty
Armor check penalty (ACP) is a penalty to some skills due to the restrictiveness of certain armor and shields.
The following are subject to ACP:
Armor check penalties from armor and shields stack.
Non-proficiency penalties[edit]
Armor check penalties always apply to your skills. Non-proficiency with an armor or shield causes its ACP to apply to your attack rolls as well.
Carrying capacity[edit]
Carrying capacity also can incur an ACP:
- Medium encumbrance causes a -3
- Heavy encumbrance causes a -6
Note that medium encumbrance does not give any visual feedback, except that you run slightly slower. This may lead to unexpected deaths while swimming.
Reducing armor check penalties[edit]
Armor and Shields[edit]
- Mithral armor and shields have reduced ACPs (usually by 3).
- Nimbleness reduces ACPs by 2 or 4.
Feats[edit]
Other items[edit]
Enhancements[edit]
Note that light armor has a base ACP of 0 (leather) or 1 (chain), so reductions beyond this level do nothing. Enhancements with reductions to ACP usually increase maximum dexterity bonus as well; reducing the ACP is just a bonus effect.
Racial[edit]
- Warforged Mithral Fluidity: [-2/-4/-6] to Mithral Body
Class[edit]
- Assassin Light Armor Mastery: [-2/-4/-6] to light armor
- Kensei Athletic Mastery: [-1/-2/-3] to all armor
- Tempest Improved Mobility: [-1/-2/-3] to light armor