>>33163304It comes from an article on a Japanese website about Battle Spot usage, that's why Mega-gross and Mega Lucario are in the pic, Primarina had higher usage than both at that time. I've no idea if the picture originated from that site or not, though, and I couldn't find a source or an artist for it when I saw it. I think it was specifically made for that article, so the artist is unknown.
