Recently in my Dresden Files game one of my friends decided to start playing a minor talent, but where the talent is opening thunder gates at will. The GM said this was fine but would take him awhile to figure out how to stat it out to not be completely take breaking. So I would like to ask how you all would handle the starting of the Thunder Gates and a character who is somehow able to make one at will. And yes one of his aspects is "Thinking with portals."