Certainly :3 Yup I would have to say it is a fake buuuuuut I mean technically maybe someone drew it off of something they had seen? That’s a huge stretch however. The caption just says that it is the 3rd legendary beast of the game.

89 kind of hypothesized about the image, questioning its authenticity and remarking that the tail differs from Reshiram and Zekrom because of flight capabilities and thought that perhaps it had something to do with water instead of flying. And then they said maybe the name was something like “Oguremu” or “Ohaimu”.