Conjuration (Creation)/Necromancy
Level: Druid 1, Sorcerer 1, Wizard 1
Components: V, S
Casting Time: 1 standard action; see text
Range: Close (25 ft. + 5 ft./2 levels)
Target: One creature
Duration: 2 rounds
Saving Throw: Fortitude partial
Spell Resistance: No
A cloud of rotting plant and animal matter swirls up from the ground around your target, encompassing it in a whirlwind of decay.
This spell encompasses your target in a cloud of rotting debris. The target is sickened for 2 rounds. Furthermore, all other creatures are treated as having concealment against the target. A successful Fortitude save negates the sickness, but not the concealment. Nonliving creatures are unaffected by the sickness effect.
A living creature already under the effect of rot of ages that fails a save against a second casting of the spell is nauseated (rather than sickened) for as long as both effects last (and then sickened for the remainder of the second spell’s duration).
Special: A black dragon capable of casting 3rd-level sorcerer spells can cast this spell as a swift action.
Source: Dragon Magic, page 72.