Crystalbrittle

The magic of this spell causes metal, whether as soft as gold or as hard as adamantite, to turn to a crystalline substance as brittle and fragile as crystal. Thus a sword, metal shield, metal armor, or even an iron golem can be changed to a delicate, glasslike material easily shattered by any forceful blow. Furthermore, this change is unalterable short of a wish spell, a dispel magic will not reverse the spell.
The caster must physically touch the item — if it is an opponent or something an opponent is using or wearing, the wizard must get into melee and roll a successful attack roll. Any single metal item can be affected by the spell. Thus a suit of armor worn by a creature can be changed to crystal, but the creature's shield would not be affected, or vice versa. All items gain a saving throw equal to their magical bonus value or protection. A +1/+3 sword would get a 10% (average of the two pluses) chance to save; +5 magical armor has a 25% chance to be unaffected; an iron golem has a 15% chance to save (for it is hit only by magical weapons of +3 or better quality). Artifacts and relics constructed of metal are not affected. Affected items not immediately protected are shattered and permanently destroyed if struck by a normal blow from a metal tool or any weighty weapon, including a staff.

School: Alteration
Level: 9
Rarity: Common

Range: Touch
Components: V, S
Duration: Permanent
Casting Time: 9
Area of Effect: 2 cubic ft./level
Saving Throw: Special