Spirit Wrack

A spirit wrack spell is a very strong protection and punishment spell against the high-up creatures of the nether planes. In order to employ the magic, the spellcaster must know the true name of the target of the spell. Prior to actually uttering this spell, the wizard must prepare an illuminated sheet of vellum, carefully inscribing the spell and the target's name. He must use special inks made from powdered rubies and the ichor of a slain tanar'ri, then ornament the vellum with gold leaf. This preparation requires 8 to 32 (Id4 x 8) hours and costs 6,000 gp for all supplies. If the outer-planar creature is present, the caster can then begin the actual incantation.

During each round of reading, the target has a 25% cumulative chance to concede without any inducements.

It takes three rounds to read the spell.

When the caster begins reading the document, the target creature becomes immobile unless it makes its magic resistance roll. If the roll succeeds, the monster is nevertheless racked with pain and is 9O% likely to retreat to its own plane if it can. Regardless of the roll's result, the target is powerless to attack the wizard while he reads the spell.

Reading the first part takes one round, with the target's discomfort increasing.

During the second round, the creature loses 1 hit point per Hit Die it possesses (for example, a 9 HD tanar'ri loses 9 hit points). At the end of this round, the target is in extreme pain.

The third and final round of the spell reduces the creature's remaining hit points by 50%, causes excruciating pain, and exiles the creature to its home plane — there to remain imprisoned in pain for the number of years equal to the level of the wizard.

Target creatures become the sworn foes of these wizards, a fact few spellcasters care to deal with. Most wizards are far more likely to create the document and use it as a threat to force a creature into submission rather than actually cast the spell itself. This spell is obviously only of limited use on the fiend's home plane.

Spirit wrack is said to have originated on the plane of Acheron, where it's used to coerce fiends into the eternal warfare there. To the dismay of many fiends, it has become much more widely known, even making its way to the Prime Material Plane. Wizards use this spell as a tool in making bargains with fiends — deals that might actually stick. Even the threat of the document can sometimes intimidate a fiend, but woe to those wizards who try such a bluff and fail. An even more evil version of this spell is rumored to exist, inflicting its painful effects on celestial beings rather than fiends.