A new race for Pathfinder - shapechanging descendants of the children captured by the Fey, which can "imprint" feats that they witness and attempt to use them in the future. This race as a PC could prove to be a bit overpowered, unless the GM works hard to keep the player on top of the necessary bookkeeping. As an NPC, they could bring an interesting new depth and color to a Pathfinder campaign.
This document is bookmarked, which isn't as necessary with a document this short, but always good to see. I wish publishers of the larger supplements (and full RPGs) would use this feature more frequently.
[4 of 5 Stars!]