The Madness domain was a deity domain that granted madness-related spells to a cleric or certain divine spellcasters devoted to a god of madness. Once the gods Cyric, Ghaunadaur, and Tharizdun laid claim, the madness domain began spreading their blessing to their followers.
Cyric "The mad god" was an ever lasting void of madness. His insanity grew indefinitely, sometimes seeming to bring him back to what might be sanity, thus cementing the depth of his madness.
Ghaunadaur resided alone in the Dismal Caverns, letting insanity claim him. In his madness, he released abominations that carried madness wherever they appeared.
Mortals wanted to keep Tharizdun's very name from their minds out of fear. His followers were given to extreme actions and inner torment, as their god existed to bring about the end of all things.  Once a day, a devoted spellcaster could gain the clarity of madness and become more wise or strong willed.
Madness Domain DeitiesEdit
Power Of Madness domainEdit
Any divine caster that worshipped a god that claimed the madness domain could channel the madness Domain. Divine casters who chose to channel the madness domain were more skilled at deception. When a caster aligned with the madness domain used an ability that harmed an enemy, their channelling of the domain could cause their target to be less accurate for a short period of time.
Screaming Madness divinityEdit
To use the divinity of the madness domain one must have had the channel divinity class feat and worshipped a deity of the domain. When the caster fulfilled these requirements, they would have the ability to use Screaming madness
Channel Divinity: Loving SacrificeEdit
Striking with fearful power, deity's madness could also strike a worshipper's target, sending it into a quick turn of insanity and making it hit itself.
Madness Domain SpellsEdit
- 1st level
- Confusion (lesser)
- 2nd level
- Touch of Madness
- 3rd level
- 4th level
- 5th level
- Bolts of Bedevilment
- 6th level
- Phantasmal Killer
- 7th level
- 8th level
- Maddening Scream
- 9th level
- Weird 
- ↑ Logan Bonner (August, 2009). “Domains in Eberron and the Forgotten Realms”. In Chris Youngs ed. Dragon #378 (Wizards of the Coast), pp. 25–38.
- ↑ 2.0 2.1 Rob Heinsoo, Richard Baker, Logan Bonner, Robert J. Schwalb (July 2009). Divine Power. (Wizards of the Coast), p. 116. ISBN 978-0-7869-4982-3.
- ↑ David Noonan (May 2004). Complete Divine. (Wizards of the Coast), pp. 139–140. ISBN 0-7869-3272-4.