R_N
Well-Known Member
not all forms are purely cosmetic though. all legendary forms add something new besides the look whether it be a type change, stat change or move set change. keldeo has nothing new in its resolution form which makes me wonder what the point of it is.
Formes change stats (for Legendaries)
Forms are cosmetic (Castform is the one, single, example against this in that it changes typing between its forms)
If it's technically a Forme but not a legend it's called something else (Zen Mode, Trash Cloak, etc)
Gamefreak is very specific in their naming schemes.
It was likely made so there would be something else to tie to the movie. I wouldn't be surprised if Spiky Eared Pichu was meant to be done in a similar way.