Spidercloak Armor - Drow

This spell surrounds the caster with a floating swirling, shadowy network of non-sticky webs (of irregular “scraps” of force) and magical shadows. This magical, partially-solid barrier helps to deflect both physical and magical attacks, improving the Armor Class of even a stationary, pinioned, or attacked-from-behind caster by +3, plus 1 or 2 points more (odd or even roll; check each round, as it fluctuates).

Spidercloak armor also gives a variable aid to saving throws, of either nothing (odd roll) or +1 (even roll; check each round), and its benefits are cumulative with those of other protective spells or items. The armor also conceals the caster's alignment aura, and any magical auras carried on his or her person, from magical scrutiny.

The material component of this spell is a bit of spider web, or a living spider (crushed during casting).