Curse Water

necromancy [evil]
Level: Cleric 1
Casting Time: 1 minute
Components: V, S, M (5 lbs. of powdered silver worth 25 gp)
Range: touch
Target: flask of water touched
Duration: instantaneous
Saving Throw: Will negates (object); Spell Resistance yes (object)

This spell imbues a flask (1 pint) of water with negative energy, turning it into unholy water. Unholy water damages good outsiders the way holy water damages undead and evil outsiders.