Transmutation
V, S
1 standard action
Touch
One weapon touched
1 round/level
Will negates (object; harmless) and Fortitude negates
Yes (object; harmless)
Your touch corrupts the substance beneath your fingers.

Where once it gleamed, it now grows dull and pitted.

You cause a rustlike patina to temporarily cover the target weapon.

(Despite its name, the spell can affect any kind of weapon regardless of material).

For the duration of the spell, any living creature damaged by the weapon must succeed on a Fortitude save or contract filth fever (DMG 292).

Use the spell's normal save DC for the initial saving throw, but use filth fever's normal DC 12 for later saves.

Multiple applications of the disease do not stack, but even a creature that succeeds on one or more saves must continue to save each time it takes damage from the weapon.

Despite the change in appearance, this spell has no ill effect on the target weapon.