From publisher blurb: Magic-wielding Warriors Without the Multi-classing! Feats of Mysticism & Magic: A Flexible Magic System for OGL Games is a brief supplement that is compatible with most d20-based OGL systems. It divorces the spellcasting system classes, opening up more flexibility in character creation and advancement. It is designed with more mordern and futuristic settings in mind where the stereotypical wizard and cleric are the exceptions rather than the norm. To make these rules even more fun for players, GMs should consider incorporating the modifications to level-based character progression featured in this free rules expansion, also from NUELOW Games.