In my first Changeling game, I played an Autumn courtier trying to move up the ranks because knowledge was already his passion, and it was a lucky thing, too, because the benefits of the Autumn Mantle were less than inspiring. We never really fixed it to complete satisfaction and since there's a brand-new Autumn Court member in our new chronicle, I figured I'd try my hand at it. What I came up with below focuses on the occult and investigative aspects of the court. I'm not sure I'm 100% happy with the level 3 and 5 options, though I'm pretty pleased with the first one.
* gain a specialty in Investigation or Occult
*** add 1 die to all rolls to navigate the Hedge
***** re-roll any failed Clarity degeneration roll involving contact with the Fae or noncontact with humans