Armour

Armour is a parameter a character or an object can have that reduces incoming damage by a certain percentage.
Armour is always expressed as a percentage. If a character with 30% armour would suffer 9 damage, they instead only suffer 6, and if they would suffer 300, they would only suffer 210.
If 300 damage would be dealt to a character with 90% armour, the character only suffers 30 damage.
The value of a character's or object's armour can change due to equipment or the effects of certain abilities.
When calculating the damage from an attack, a target's armour parameter can be reduced by the attack's armour penetration.
Armour penetration can never reduce a target's armour below 0%.