Polymorph into Tree
(Alteration, Enchantment)(Plant)

Range:  60 yards
Components:  V, S, M
Duration:  Permanent
Casting Time:  8
Area of Effect:  One creature per 2 levels
Saving Throw:  Negates

This spell is similar to polymorph other except that target creatures can only be turned into trees (usually oak). All creatures get a saving throw to avoid the effects of this spell. Those who fail turn into trees with their minds trapped within. Clothing, possessions, etc., are not transformed as part of the spell. Those who save feel their limbs turn wooden and stiff, the effects being as if a slow spell were cast upon them, with duration 2 rounds per level of the priest.
To cast this spell, the priest needs a sprig of holly and tree sap from the tree type to which the targets are being polymorphed into. Only a wish or a higher level priest can reverse the effects of this spell.

