I am not the creator - I just found the clip on imgur (no.7 in this dump: https://imgur.com/gallery/nR5llSL) and thought it was neat enough to share. Took me a bit to track down the orignal sources tho, as the imgur post didn't provide any ... but I dislike sharing other people's stuff without proper credit. ;)
The animated clips were created by an artist named oshiruko and the originals can be found here: https://twitter.com/oshiruko_s2
Alternate platforms the author uses in case you don't want to click on a Twitter link: https://linktr.ee/oshirukos2
The special Shiny Arcanine distribution has been officially revealed. This Shiny Arcanine is based on the Arcanine used by Paul Chua to win the Europe International Championships in April. It can be obtained until July 3rd