This spell affects a single creature you summoned via summon monster V or a lesser summon monster spell.

REWRITE STILL IN PROGRESS.

     This spell ages the caster 5 years when cast. It insidiously destoys the connection the elemental has with its native plane, making it a permanent resident of the prime material plane, completely under the control of the caster (no concentration needed). Roll d% when the spell is cast, modified with +1 for every point of intelligence of the caster, and -1 for each Hit Die of the elemental. 01-10 indicates the elemental did not survive the transformation. 11-20 indicates that the elemental was almost destroyed, but was instead shunted back to its home plane. 21-25 indicates that only the magic controlling the elemental was disjoined, making it free-willed and probably very angry. 26-30 indicates that the ties that bind the elemental have been strengthened (like a failed attempt at dispel magic), but the elemental is still tied to its plane. 31-00 indicates a successful casting of the spell.

     The elemental will live 20+1d4 years, or until its new master dies. The elemental must not stray farther than 100' or the caster, or the site of the destruction of the ties, or it will immediately perish. Disjoiners therefore tend to cast this spell at their lair.

     The ties that bind the elemental to the caster can be targeted by a dispel magic, but will only release the elemental 10% of the time (assuming the dispel attempt was successful), at which time it will die in 3d4 rounds unless it is returned to its plane of origin.