We have created an entire book dedicated to BESM Fourth Edition rules variations, extended game mechanics, expanded optional guidelines, creative adventuring elements, and plenty of ready-to-use examples of spells, powers, and items. Along with the BESM core book and BESM Naked, BESM Extras is a foundational pillar for the game line. This gorgeous volume is 144 full-color pages with beautiful illustrations from talented artists across the world.