The Book of Eldritch Might

From the Back of the Book:

• Eleven original feats including the new eldritch type, which grant specific magical abilities to enhance your spells in ways that metamagic feats can’t
• Three new prestige classes: the embermage (the supreme fire mage), the graven one (who covers his entire body in magical tattoos), and the mirror master (specializing in unique mirror magic abilities and spells).
• More than 60 new spells of all levels that you can add to any campaign.
• A like number of magic items of all types, from weapons to wondrous items (and artifacts!). This section introduces the brand-new concepts of magic poisons and magic vehicles such as the wheeled war altar and the diving sphere.
• Last but not least, The Book of Eldritch Might presents a new monster template, the magical construct, which allows any spellcaster to create golemlike guardians and servants based on existing monsters.