Cold Steel Hot Blood
Rune of Armor
The Rune of Armor is an applied rune. The rune provides the target with Damage Reduction 2 for one hour/caster level or until the total amount of protection is consumed. The rune provides ten points of damage absorption per caster level. So a third level caster can create a rune that last for three hours and can protect against a total of thirty points of damage.
Base spellcraft check for this rune is 13.