Eldath's Peace

A ritual known to only a few druids of Eldath, the spell consecrates a 90 foot cube of land for Eldath for a period of 24 hours. For those 24 hours, the grove around it is purged of any supernatural corruption. After these 24 hours, if the cause of corruption remains, the corruption begins to seep back into the land and ecosystem. The spell is ineffective if not in a natural land (a city, or otherwise man-made area at the DM's discretion). Water runs pure, and plants and animals are cured of any diseases or conditions brought about by magic. This does not cancel them, and any conditions that exist prior to it are merely suspended. Subsequent castings of the spell can prolong them, and if the spell is cast at the same spot for a year, it becomes permanent until dispelled. If permanent, the 90 foot cube becomes immune to natural disease or drought. It remains an oasis despite any natural conditions, but supernatural conditions in this permanent state can override the spell's benefits (a Blight spell, etc).