The spell would affect any non-humanoid, semi-intelligent mammals in a designated 20-foot-wide (6.1-meter) circle. It had to be cast in darkness, such as underground or at night as whenever daylight struck a magically created darkenbeast it would revert back to its natural form. Spells like sun ray and sun blade could also have this effect.
Circa the Year of the Helm, 1362 DR, a Red Wizard Maligor used create darkenbeast to shapeshift hundreds if not thousands of animals into darkenbeasts to be used as bloodhounds and his personal army.
- ↑ 1.0 1.1 1.2 1.3 Jim Butler (1995). The Secret of Spiderhaunt. (TSR, Inc), p. 30. ISBN 978-0786901500.
- ↑ Mark Middleton et al (November 1996). Wizard's Spell Compendium Volume One. (TSR, Inc), p. 189. ISBN 978-0786904365.
- ↑ Jean Rabe (1991). Red Magic. (Wizards of the Coast), p. 11. ISBN 1-5607-6118-0.