Fiend of corruption

A fiend of corruption was an evil outsider who specialized in tricking people into embracing the darker aspects of themselves. They did so out of the spitefulness of their nature.

Known Fiends of Corruption
Wendonai: A Balor in the Service of the Drow Demon Goddess, Lolth. He took possession of the Crescent Blade that Halisstra Melarn had left behind in the Demonweb Pits to have easy access to the priestesses of Eilistraee opposing Lolth on the Material plane.