Rain is a Level 3 continous power that causes it to rain in a ghost's area.
If the ghost is outside, rain will begin to fall all across the map. Mortals don't like being out in the rain; most will run indoors and stay there while it rains. Mortals with the fear of water suffer light/minute water terror.
If the ghost is indoors at the time, a rainstorm will be created inside. Any mortal in the same room as one of these indoor storms will suffer light/minute belief.
Ghosts[]
*added via the Ghost Master Complete Edition mod