What you’re looking at is leaked concept art for the revised American version of Pokemon.
In a recent interview, Satoru Iwata revealed that they originally wanted “muscle-bound characters to use if we wanted to do well in the U.S.”
Imagine how weird Pokemon would be if they used that? I’ll bet the same people who wanted muscular characters were also responsible for angry Kirby.
Oh BTW, that image I posted is BS. It’s not concept art. It’s from some weird Japanese art site. Most people are probably aware of this site and its muscular/weird depiction of your favorite anime/game characters. In case you don’t here’s the link. It would be rude to use art without giving credit.