Page 46, Dragon Magazine #304 Prestige Races Changing Your Character for the Better Designated D20 Open Game Content under Open Game License Version 1.0A The Dungeons & Dragons rules create a world where heroes can experience rapid advances in their skills and power. Surviving adventure and risk-taking are real learning experiences that cause physical and mental change. In this kind of world, creatures might even alter their forms by gaining experience. The Oathbound campaign setting, produced by Bastion Press, presented the concept of "prestige races," allowing characters to do just that. By expending XP, any creature can alter its form and gain new abilities.