This spell is similar to the 4th-level wizard spell stoneskin in that the affected creature gains virtual immunity to any attack by cut, blow, or projectile.
Physical attacks by weapons (even enchanted ones), natural animal weapons (such as fangs and claws), and hurled projectiles (giant boulders) cannot penetrate ironskin.
Magical attacks from such spells as fireball, magic missile, lightning bolt, and so forth have normal effects. The spell blocks 1d6 attacks, plus one for every two levels of the caster.
For example, an ironskin cast by a 13th- level priest protects against 7 to 12 attacks.
However, unlike the stoneskin spell, only physical attacks that would otherwise have scored a hit on the creature count against that total.
For example, a fighter can attack with a sword and fail the attack roll without bringing down the total, while three magic missiles would hit, cause damage, and reduce the protection by three.
The material component is a small iron statue worth at least 5 gp.
Notes: Uncommon spell for Elemental Earth priests from the Dark Sun setting.