Argaster's Cloak of Shadows

This spell obscures the recipient with an ever-shifting, rolling web work of intangible, dark shadows. Argaster's cloak of shadows veils the creature's face, overall appearance, and precise location (although a caster using the cloak can reveal his face or hide it, whenever desired).

The affected creature gains a 2-point bonus to his Armor Class (for example, AC 6 becomes AC 4) and missile weapons aimed at the creature suffer a -1 penalty to attack rolls. Evard's black tentacles and web spells immediately negate and are destroyed by Argaster's cloak of shadows on contact. Thieves and like individuals cloaked by the spell gain a +5% bonus to their hide in shadows ability.

The material components of this spell are a bit of cobweb and a pinch of dust.