When this spell is cast, the priest causes a volume of wood to bend and warp,
permanently destroying its straightness, form, and strength. The range of a warp wood spell is 10 yards for each level of experience of the caster. It affects
approximately a 15-inch shaft of wood of up to 1-inch diameter per level of the
caster. Thus, at 1st level, a caster might be able to warp a hand axe handle or
four crossbow bolts; at 5th level, he could warp the shaft of a typical spear.
Note that boards or planks can also be affected, causing a door to be sprung or a
boat or ship to leak. Warped missile weapons are useless; warped melee weapons
suffer a -4 penalty to their attack rolls.

Enchanted wood is affected only if the spellcaster is of higher level than the
caster of the prior enchantment. The spellcaster has a 20% cumulative chance
of success per level of difference (20% if one level higher, 40% if two levels
higher, etc.). Thus, a door magically held or wizard locked by a 5th-level
wizard is 40% likely to be affected by a warp wood spell cast by a 7th-level priest. Wooden magical items are considered
enchanted at 12th level (or better). Extremely powerful items, such as artifacts, are
unaffected by this spell.

The reversed spell, straighten wood, straightens bent or crooked wood, or reverses the effects of a warp wood spell, subject to the same restrictions.