Manythorns

This spell covers the caster in thousands of bristling thorns. To the caster, these are weightless, spectral, and harmless (the thorns on a caster's arm can apparently retract into the caster's face; using that arm to scratch her nose causes no damage). To others they form an armor that improves the caster's Armor Class by 2, and slashes any creature that comes into bodily contact with the priest for 1d4 points of damage. If the caster can crush a foe against a wall or deliver a blow with a thorn-studded limb (both actions require a successful attack roll), damage is increased to 1d4+2 points. Creatures clad in splint mail or better armor (such as plate mail) are immune to such damage; creatures clad in ring or chain mail are allowed a saving throw vs. spell for half damage.

The thorns fade instantly into nothingness at the end of the spell and are not considered true plant material for the purposes of determining whether they are affected by either friendly or hostile magic.

The material components of this spell are six or more plant thorns.