Abjuration [Darkness]
Level: Darkness 4
Components: V, S, DF
Casting Time: 1 standard action
Range: Touch
Target: Creature touched
Duration: 10 minutes/level
Saving Throw: Will negates (harmless)
The spell envelops the creature in a shroud of flickering shadows.
The shroud grants the subject a +4 deflection bonus to Armor Class plus an additional +1 for every three caster levels above 7th (for a total of +5 at 10th level, +6 at 13th, +7 at 16th, to a maximum of +8 at 19th level). The subject can see through the armor as if it did not exist and is also afforded darkvision out to 60 feet. The subject gains a +2 saving throw bonus against any holy, good, or light spells or effects.
Undead creatures that are subjects of armor of darkness also gain +4 turn resistance.
Source: Spell Compendium, page 15.