Transmute Metal to Wood

The transmute metal to wood spell enables the caster to change an object from metal to wood. The volume of metal cannot exceed a maximum weight of 10 pounds per experience level of the priest. Magical objects made of metal are 90% resistant to the spell, and those on the person of a creature receive the creature's saving throw as well. Artifacts and relics cannot be transmuted. Note that only a wish spell or similar magic can restore a transmuted object to its metallic state. Otherwise, for example, a metal door changed to wood would be forevermore a wooden door.
This spell is not reversible.

Sphere: Elemental (Earth)
(Alteration)
Level: 7

Range: 80 yards
Components: V, S, M
Duration: Permanent
Casting Time: 1 round
Area of Effect: 1 metal object
Saving Throw: Special

Material Components:
a few metal shavings intermingled with wood chips