>>/1626/
> Tempest Shadow ACTUALLY EXISTS in the movie and she was confirmed canon on 6th October of 2017

Is that really her name? Did they make her in reference to the OCs. I'm still a skeptic but you may have check mated me on this one. That is, if she actually looks that way in the movie and isn't some kind of gothy shy and  character who they only added as a side hero character for celeb voice reasons.   

 >>/1641/
The bats give it away as a Halloween episode, so they don't count.