Why... hey there!
This was completely unexpected. After a short workout at the gym, I decided to battle the nearby Aerodactyl raid to use up my pass and get some more TMs. The battle itself was quite easy and this is a level 3 battle and a decent team of Raikous and Gyarados made quick work of him. After flipping through the rewards, I was surprised with this!
IV's are not great but shiny makes it a keeper!