Spirit Worm

(Spell Compendium, page 202, DnD 3.5)

Necromancy

Level: ; Sorcerer/Wizard 1
Components: V, S, M
Casting Time: 1 standard action
Range: Touch
Target: Living creature touched
Duration: 1 round/level, up to 5 rounds; see text
Saving Throw: Fortitude negates; see text
Spell Resistance: Yes

You press the bit of blackened bone against your foe and intone the spell. The bone vanishes, leaving a mottled bruise where it touched.

You create a lingering decay in the spirit and body of the target. If the target fails its saving throw, it takes 1 point of Constitution damage each round while the spell lasts (maximum 5 points). The victim can attempt a Fortitude saving throw each round, and success negates the Constitution damage for that round and ends the spell.

Material Component: A piece of fire-blackened ivory or bone carved in the shape of a segmented worm.