Mage-to-Mage Magical Combat System and Spell Description Language

From the introduction:

Some spell construction systems attempt to provide all the functionality of AD&D spells by enumerating hundreds of specialized primitives. The high number of primitives present in the some systems reflects AD&D’s lack of a distinction between effects, the actual physical, biological, or psychic manifestations of magical forces, and operators which act to shape those forces into useful configurations.

User summary:

Presents an innovative and intriguing, if complicated, system of spell casting. This item originally was posted to Usenet. Subsequently, saved documents in text format have circulated widely on the internet.