[@RiverMaiden] Good question. No, I'm not "winging it". I'm giving everyone a chance to use whatever powers that they choose (within reason), with only the restrictions of the Aspects as their limits. Someone wants a certain power, I'll balance it and set it under an Aspect. A shapeshifter's arm that actually transforms at will, caused by an anomaly within the character's manifestation of Aeon? Sure. It's Existence Manipulation, and approved after setting the boundaries of what it can turn into. The only one without any visible boundaries is Destruction, but you're either a Void user, which I'll explain more about in another edit of the post, or a highly advanced Invoker to be able to use it, and it is as dangerous to the user as it is to everyone else.