Magic Circle Against Alignment
From HGWiki
Caster Level: Bard 3; Cleric 3; Paladin 3; Sorcerer/Wizard 3
Innate Level: 3
School: Abjuration
Descriptor(s):
Component(s): Verbal, Somatic
Range: Touch
Save: Harmless
Spell Resistance: No
Area of Effect/Target: Medium (3.33 metre radius), around a single creature
Duration: 1 Hour / level
Description: When this spell is cast, the caster chooses to be protected from either good or evil. The spell target and all allies within 10 feet receive a +2 deflection bonus to armor class, +2 to all saving throws, and immunity to any mind-affecting spells and spell-like abilities used by creatures of the chosen alignment.
Notes
Allies only gain these bonuses as long as they stay within 10 feet of the target. Leaving this area immediately removes the bonuses and reentering the area reapplies them.
The bonus granted to saving throws stacks with the bonus granted by protection from alignment.
If a potion of this spell is made (typically via brew potion), and if that potion is fed to an associate, then the against evil variant is automatically chosen.
This spell, when cast by a character of suitable level, can be used to prevent the turning effects of certain high level creatures such as Death Knights in the Abyss.