Mordenkainen's disjunction was a powerful abjuration spell that reduced magic items and effects to their basic components, effectively and permanently canceling them. It was also known as mage's disjunction.[note 1] To Zakharan mages, always reluctant to acknowledge ajami names and accomplishments, the spell was known simply as disjunction, and counted among the spells of the universal province.
The spell caused all magic effects and items to be broken down (or "disjoined") into their basic components. The spell even had a chance of overcoming the effect of an antimagic field if the caster was sufficiently powerful. In effect, magic items were stripped of their magic and reverted to mundane items and any spells in effect in range were instantly ended. The wearer of a magic item subjected to disjunction might try to assert their own willpower to try to prevent the item from being disjoined.
Mordenkainen's disjunction was so powerful that even artifacts and spelljamming helms were not entirely immune to its dissociating magic. There was a chance, albeit small, that an artifact or helm could be stripped of its magic, also permanently maiming the magical capabilities of its wearer. Of course, the destruction of a powerful artifact ran the risk of calling the attention of powerful beings associated with that artifact.
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- Spellfire: Master the Magic
- Jonathan Tweet, Monte Cook, Skip Williams (July 2003). Player's Handbook v.3.5. (Wizards of the Coast), pp. 188, 196, 255. ISBN 0-7869-2886-7.
- David "Zeb" Cook (August 1989). Player's Handbook (2nd edition). (TSR, Inc.), p. 196. ISBN 0-88038-716-5.
- Dale Donovan (January 1998). Cult of the Dragon. (TSR, Inc), p. 126. ISBN 0-7869-0709-6.
- Sam Witt (January 1994). The Complete Sha'ir's Handbook. (TSR, Inc), pp. 124, 126. ISBN 978-1560768289.
- Gary Gygax (August, 1985). Unearthed Arcana (1st edition). (TSR, Inc.), p. 65. ISBN 0880380845.
- Jeff Grubb (August 1989). “Concordance of Arcane Space”. Spelljammer: AD&D Adventures in Space (TSR, Inc.), p. 85. ISBN 0-88038-762-9.
- Ed Greenwood, Eric L. Boyd (1996). Volo's Guide to All Things Magical. (TSR, Inc), p. 109. ISBN 0-7869-0446-1.
- Jeff Grubb and Ed Greenwood (1990). Forgotten Realms Adventures. (TSR, Inc), p. 153. ISBN 0-8803-8828-5.