What solbergb said.
At a quick glance at the wiki, I'd start with Beast Change and Human Guise, Aquatic, Incite Lust (and at least the At Range upgrade), probably Glamours, and then a few physical powers (speed and recovery strike me as first choices).
Good thoughts. The player has their eyes set on being a Changeling and this led to an insight on Shape Changers from our world vs the NeverNever.
The Fae, Sidhe in particular, copy and play at being human or of our world. Just as they copy our clothes, customs, food and appearance, any animal of our world they copies would have Fae adjustments. Just as they are beautiful beyond measure, their shape changed animals would be striking or exaggerated.
Whereas in our world, when a human uses magic to take the form of a wolf or bear, it looks much closer to natural wolves and bears. They would not be perfect imitations and might seem off to naturally occurring animals, but it's closer and less otherworldy in nature.
Like the hexenwulfs, who's nature was demonic in nature or influence, they wolves they turned into were exaggeratedly large and menacing.
While this may be largely flavor text, I think this understanding will help me and my players work out which way to go and inform aspects choices.
Thanks again all!
~ GiS