New options and character hooks for tiefling characters. If you want to play the ultimate tiefling hero, this book is for you! This expansion of the Player's Handbook ® core rulebook explores the infernal secrets of the tieflings. It presents D&D ® players with exciting new options for their tiefling characters, including unique racial feats, powers, paragon paths, and epic destinies. This book also includes ways to flesh out your tiefling character's background and personality.