Natural armor bonus

Natural armor represents a creature's hide or magical effects that make skin thicker (such as Barkskin). Natural armor provides a bonus to AC.

Most items and spells provide plain "natural armor" modifier to AC. Only the highest effect applies. However, there are also some stacking bonuses to natural armor with a different bonus type.

Natural armor bonus:

• Named items
• Random items with the suffix "of Natural Armor": +1 to +10
• Random armor/shields with the prefixes Bracing / Bolstering / Buttressing: +1 to +3
• Pirate Hat from Treasure of Crystal Cove +1 to +5
• Spells/Potions:
  • Barkskin: +2 to +5
  • Spiderskin: +2 to +5
  • Toughen Construct: +2 to +5 (Constructs only)
  • Yugoloth potion: +4
  • Hezrou Cookie: +4
• Crafting:
  • Cannith Crafting: +1 to +15
  • Dragontouched Armor: Sovereign Rune +4.
  • Empty Blue Augment Slot Blue Augments
    • AC: Natural Armor Bonus or Protection (Deflection bonus): +1 to +8
    • ASF reduction: -5% to -15%
    • Fortification: +25% to +100%
    • Golem's Heart
    • Good Luck: +1 or +2
    • Hit points: +5 to +40
    • Max Dex Bonus (Armor): +1 or +2
    • Defense (PRR and MRR): +2 to +16
    • Saves (Resistance bonus): +1 to +8
    Colorless Augments
    • Ability (Enhancement bonus): +1 to +8
    • Ability (Exceptional bonus): +1
    • Ability (Insight bonus): +1 or +2
    • Diamond of Vitality +20
    • Globe of Imperial Blood
    • Globe of True Imperial Blood
    • Master's Gift
    • Skills, except UMD (Competence bonus): +3 to +15
    : Sapphire of Natural Armor +1 to +8.

Primal bonus:

• Rough Hide items

Miscellaneous bonuses:

• Knight's Loyalty PDK set bonus: +3 insight bonus to natural armor
• Abishai Destroyer: +2 profane bonus to natural armor
• Clan Gnashtooth Kobold (legacy guild buff) grants a stacking bonus to natural armor
• Wayward Warrior set bonus: +2 (heroic) / +5 (legendary) Artifact bonus to natural armor

Racial Enhancements:

• Dragonborn Tier 1 Enhancement: Hard Scales: +2/4/6 bonus to natural armor (stacking)