Is shadowshield
Shadow Shield
Spell Information
Spell level : Innate level: 7, Sorcerer/Wizard: 7
School : Illusion
Components : Verbal and Somatic
Range : Personal
Target/Area : Caster
Duration : 1 min. * cLevel
10 Rounds(cLevel).
Save : Harmless
Spell resistance : No


You are shrouded in a cloak of shadow that protects you with the following effects:


The in-game description reads "10/magic" damage reduction. It is actually 10/adamantine.

Also grants 100% immunity to negative damage, even though not mentioned in the description.