Advanced d20 Magic OGL

Advanced d20 Magic » Advanced d20 Magic OGL
Advanced d20 Magic is an alternative magic system for the System that breaks from the level-based magic that is in the core of the D&D and d20 System. Produced by Guardians of Order, the magic system was first used in Slayers d20 and strangely enough, Sovereign Stone d20, before it was adapted for use with the familiar spells of D&D/d20. The text in these wiki pages referring to the Advanced 20 Magic rules are taken directly and indirectly from work by Guardians of Order. This work is declared Open Content by Guardians of Order, a company that has recently gone into bankruptcy. In order to comply with the Open Game License, we must include the following information.
Copyright Notice

Open Game Licence v 1.0a Copywrite 2000, Wizards of the Coast, Inc
System Rules Document Copywrite 2000 Wizards of the Coast, Inc; Authors Jonathan Tweet, Monte Cook, Skip Williams, based on original material by E. Gary Gygax and Dave Arneson.
Modern System Reference Document Copywrite 2002, Wizards of the Coast, Inc; Authors Bill Slavicsek, Jeff Grubb, Rich Redman, Charles Ryan, based on material by Jonathan Tweet, Monte Cook, Skip Williams, Richard Baker, Peter Adkison, Bruce R. Cordell, John Tynes, Andy Collins, and JD Wiker.
Silver Age Sentinels d20 Copyright 202 Guardians of Order, Inc; Authors Stephen Kenson, Mark C. MacKinnon, Jeff Mackintosh, Jesse Scoble.
BESM d20 Copyright 2003, Guardians of Order, Inc; Author Mark C MacKinnon.
d20 Advanced Magic Copyright 2005, Guardians of Order, Inc; Author David Lyons, Michelle Lyons.