Quote Originally Posted by henebry View Post
A second, more serious question: you describe Time Walk as enabling Chronomancers to visit the past without any possibility of disturbing the past. Yet the Chronomancer and his companions aren't incorporeal. What are they? By what mechanism (beyond DM fiat) are they prevented from affecting the past? This ability definitely needs some fluff to make it feel plausible.
I read it as "You can do whatever you want, but nothing's different when you return." So you could travel back in time and kill Hitler and your grandfather, but when you come back, WWII still happened, people still use the name "Nazi" to talk about every stickler for the rules, and you were still born.