This spell was a less powerful version of the insect plague spell used in Faerûn. The main difference between this spell and insect plague was that pestilence had a longer duration. Like insect plague, this spell summoned all types of crawling invertebrates, such as ants, beetles, caterpillars, roaches, spiders, and others. They then infested the target area, consuming plants and causing animals to flee. The spell could clear an area of plants within a day. Any individual within the area received numerous bites and stings. Once cast, the infested area could not be moved.