Mostly, though, those True Fae are the ones that are banished from Arcadia and have a large chunk of their powers removed in the process. All of the Fae in Autumn Nightmares, for example, are banished from Arcadia. True Fae are things with the Arcadian Huntsman, p.277 in the core book, as an average specimen. Wyrd 8, 5 dots in 4 contracts, 6 in a number of skills and a stat, and a large pack of Briarwolves and quite possibly Beast Seeming Changelings. If you include Rites of Spring, they also may or may not have a Goblin Vow with every aspect of reality to boot.
Amd the Arcadian Huntsman is a really good example of a True Fae that would be a good, difficult, challenge for a prepared Wyrd 6 Motley.