Black unicorns were fiendish versions of their good unicorn brethren, magically created by the Red Wizards of Thay. They became prominent in the armies of Thay, serving as elite cavalry.
Black unicorns would only allow human or drow females of an evil alignment to ride them. It was believed they particularly enjoyed serving blackguards.
- ↑ 1.0 1.1 1.2 1.3 Michael John Wybo II (February 1993). “Unique Unicorns”. In Roger E. Moore ed. Dragon #190 (TSR, Inc.), pp. 90–94.
- ↑ 2.0 2.1 2.2 James Wyatt and Rob Heinsoo (February 2001). Monster Compendium: Monsters of Faerûn. (Wizards of the Coast), pp. 83–84. ISBN 0-7869-1832-2.