Scale Weakening

Level: Sorcerer/wizard 2
Components: V, S, M
Casting Time: 1
standard action
Range: Close (25 ft. + 5 ft./2 levels)
Effect: Ray
Duration: 1 minute/level (D)
Saving Throw: None
Spell Resistance: Yes

As you cast this spell, the snakeskin vaporizes.
A dull gray ray projects from your
hand. Where the ray strikes, your foe’s skin
seems brittle and more frail.

You must succeed on a ranged touch
attack with the ray to strike a target.
The subject’s natural armor bonus is
reduced by 1 point per three caster
levels (maximum reduction 5 points
at 15th level). This spell can’t reduce
a creature’s natural armor bonus to
less than 0, nor does it have any effect
on an enhancement bonus to natural
armor (such as that granted by the
barkskin spell).

Material Component: A shed snakeskin.