GUIDE · COMBAT MECHANICS
Armor class: Stone Defense
The Stone Defense armor class determines which class-based bonus attacks apply to a unit. It is separate from melee and pierce armor; units carrying several classes can receive multiple applicable bonuses.

Overview
The Stone Defense armor class determines which class-based bonus attacks apply to a unit. It is separate from melee and pierce armor; units carrying several classes can receive multiple applicable bonuses.
How to read this class
An armor class is a hidden combat category used to determine bonus damage. It is separate from a unit’s melee and pierce armor: the target’s class identifies which bonus attacks can apply, and multiple class bonuses can add together. Use the member list and counter list below to identify both who carries this class and which units can exploit it.
How to use this reference
The Stone Defense armor class determines which class-based bonus attacks apply to a unit. It is separate from melee and pierce armor; units carrying several classes can receive multiple applicable bonuses. Armor class is separate from ordinary armor: it determines which class-based bonus attacks apply when units meet in combat.
- Also known as
- Stone Defense armor class
- Focus
- Armor-class reference
- Signature / category
- Bonus-damage class
- Release / context
- Age of Empires II system
- Region
- Combat mechanics
- Classification
- Armor classes
Armor classes determine bonus damage independently of melee and pierce armor.
Units with this armor class (11)
Stone Wall · Fortified Wall · Gate · Fortified Gate · Watch Tower · Guard Tower · Keep · Bombard Tower · Donjon · Harbor · Fortified Church
Units with bonus attacks
+50 bonus attack
+40 bonus attack
+30 bonus attack
+12 bonus attack
+11 bonus attack
+10 bonus attack
+7 bonus attack
+6 bonus attack
+5 bonus attack
Watch Tower · Guard Tower · Keep · Donjon
+4 bonus attack
Battle Elephant · Elite Ballista Elephant