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There isn't actually an official animation where it's like this as an idle, only briefly in some animations such as an attack animation, so if this were to be done it would have to be via a custom animation which might be more effort than they'd want for this project.
This one exists(couldn't find the normal one on my pc so i just sent my custom shiny)
https://media.discordapp.net/attachments/1357078436853583973/1362311459689861193/Gholdengo.gif?ex=6854fd6a&is=6853abea&hm=dd5c9976a8a4d4ecd4cbe9df732bf5d9ce132243f7d09ff1cd63af47060beb32&= (Upload Image isn't...
Go Glimmora!!
How difficult would it be to become a volunteer, I've been rendering for a bit and am really interested in the process used for Showdown Renders since I know some things are different, including the models