Advanced D20 Magic BESM D20 Supplement Author:David Lyons, Michelle Lyons Advanced d20 Magic provides players with a balanced, sophisticated magic system for d20 System role-playing games (including BESM d20). The book provides complete rules for a skill-based magic system, guidelines on how to accurately convert traditional d20 spells for use with the advanced system, and hundreds of converted and new spells for easy... more » use.« less