. "Shield bonus is the typed bonus to AC and Reflex a creature gains by using a shield.[RC:267] A creature may gain a shield bonus through other sources as well, such as class features, items or feats."@en . "Shield bonus is a bonus to Armor Class granted by a shield or by a spell or magic effect that mimics a shield. Shield bonuses stack with all other bonuses to AC except other shield bonuses. A magic shield typically grants an enhancement bonus to the shield's shield bonus, which has the effect of increasing the shield's overall bonus to AC. A shield bonus granted by a spell or magic item typically takes the form of an invisible, tangible field of force that protects the recipient. A shield bonus doesn't apply against touch attacks."@en . . . "Shield bonus is a bonus to Armor Class granted by a shield or by a spell or magic effect that mimics a shield. Shield bonuses stack with all other bonuses to AC except other shield bonuses. A magic shield typically grants an enhancement bonus to the shield's shield bonus, which has the effect of increasing the shield's overall bonus to AC. A shield bonus granted by a spell or magic item typically takes the form of an invisible, tangible field of force that protects the recipient. A shield bonus doesn't apply against touch attacks."@en . "Shield bonus"@en . . "A shield bonus is a type of modifier available for a creature's armor class, representing an enchantment on the shield equipped by a creature (but technically not requiring a shield to actually exist). The only standard source of this type of bonus is an item property on shields. (Such an item property can be created with the spell magic vestment.) Multiple shield bonuses (which is possible with custom content) do not stack."@en . . "Shield Bonus"@en . "Shield bonus is the typed bonus to AC and Reflex a creature gains by using a shield.[RC:267] A creature may gain a shield bonus through other sources as well, such as class features, items or feats."@en . "A shield bonus is a type of modifier available for a creature's armor class, representing an enchantment on the shield equipped by a creature (but technically not requiring a shield to actually exist). The only standard source of this type of bonus is an item property on shields. (Such an item property can be created with the spell magic vestment.) Multiple shield bonuses (which is possible with custom content) do not stack."@en .