Hardiness is a high-level class ability available to fighters, rangers, paladins, barbarians and monks in Baldur's Gate II: Throne of Bhaal and Baldur's Gate II: Enhanced Edition. It is available upon reaching level 18 for the paladin and the ranger, level 20 for the fighter and barbarian, and level 22 for the monk.
This ability can be used to lower damage from blunt, slashing and piercing damage from melee weapons and piercing damage from projectiles by 40% for one round for every two levels of the warrior.
|“||Calling upon hidden reserves of strength during times of danger, a warrior can use the Hardiness ability to gain 40% resistance to all forms of physical damage. The ability lasts for 1 round for every 2 levels of the warrior.||”|