Wow the morning I just had.
Okay, the Sylveon animation you're inquiring about. Originally, Dustin sent my the image in a VM, without any actual link to where it came from. So I did an image search on Google, and came up a DeviantArt account. Unfortunately, the owner of said account didn't actually make the images, he used various animations of other pokemon that were similar on his "about me" section. So I was like, fine, there's a few more I can add to the list. So I took one of the other ones, a Meowstic to be precise, and searched that. Came up with a bunch of different forums where people were using the animation as an avatar. So nothing lol. I went back to the dA page and searched a few others, with varying success. Until I got to Klefki.
There I was led to a spanish pokemon database. And voila, [IMG][IMG]
Some examples of one Pokemon on the database. So yay! I found one of the sources for you! Problem is, some of them are watermarked, so not all of the attack / stance / form animations of all of the pokemon are available. But, I did the best I could for you. I hope you find what you're looking for! <3
http://www.pkparaiso.com/pokedex/goodra.php
^the database, specifically linking to Goodra