Wall of Moonlight

This magic creates a shimmering tapestry of swirling, pearl-white force. A wall of moonlight is intangible, need not be anchored to anything, and can readily be passed through. It can be made smaller than the caster's limits if surroundings confine it or the caster wishes to leave an opening beside it, but it cannot be dismissed prematurely. The false moonlight of the wall is bright enough to read by and to clearly illuminate its surroundings within 20 feet in all directions. Beings employing infravision cannot see clearly through it, though they may, if the situation allows, be able to shield their eyes and see past it.

A wall of moonlight has the following effects on creatures and items coming into contact with it or passing through it: Undead creatures take 4d12 points of damage. Creatures of evil alignment plus any being who is carrying a holy symbol consecrated to the goddesses Shar or Umberlee suffer 2d10 points of damage. Magical items glow with a sudden red faerie fire for 1d4+1 rounds; this cannot be banished before its duration ends, even if the wielder can normally control the radiance of the item. Magical potions must make a successful item saving throw vs. magical fire or explode, inflicting 3d4 points of damage upon beings within 10 feet or 1d4+8 points of damage to any being carrying them if they are carried in a glass, crystal, or ceramic flask. (If they are carried in some other manner and fail their saving throw, the Dungeon Master must adjudicate the appropriate proportionate effects.) Finally, magical darkness of any sort is banished and cannot be evoked or continue to exist within 40 feet of any part of a wall of moonlight.

If a creature passes through the wall more than once, or pauses in its midst for more than one round, the being suffers this damage for each contact with the wall or round of continuous contact with it.