From publisher blurb: This, the latest sourcebook for the Amazing Adventures line, provides a brand new effects-based powers system, which is 100% compatible with all systems and subsystems that have come before, and allows you to construct exactly the abilities you want for your character. Build your powers from the ground up, whether it's for your arcanist, gadgeteer, or even super hero gaming! The Amazing Adventures Book of Powers includes: A brand new effects-based powers system A new type of magic based on crafting spells from the ground up Rules for playing vampires, werewolves, angels and demons Player advantages to take your character customization to the next level A new skill system based on the popular SIEGE Engine check system New, streamlined and simplified firearms rules This and more are all at your fingertips. Take your campaign to the next level with the Amazing Adventures Book of Powers!