This spell causes an invisible, slightly convex barrier about three feet in diameter to appear five feet above the caster's head. The rainshield shelters the caster from rain or other liquids falling from above. It can be freely penetrated by solid objects or magical effects that are not liquid.
With conscious effort, the caster can move the rainshield from its position directly overhead to a better angle for stopping wind-blown rain, or even directly in front or to the side to impede a direct liquid-based attack. The limited area the rainshield protects may allow splashes to strike the caster even if the major part of an attack is diverted. Others standing near the caster might share the benefits at the DM's discretion, but the essential protection is the caster's, and the rainshield cannot be deliberately positioned give more benefit to another.
Notes: Very rare spell (Updated from Dragon Magazine.)