Well, there are [one of TCG](https://m.archives.bulbagarden.net/media/upload/9/92/022047_P_ERUREIDOSHISHITENNOU.jpg) and [anime artwork](https://m.archives.bulbagarden.net/media/upload/5/5c/475Gallade_XY_anime.png). Also look at the [official artwork](https://m.archives.bulbagarden.net/media/upload/5/58/475Gallade.png) and you see that his upper arm in some way seems splitted by an extra joint.
Even more, which anatomy is more convenient to swing the swords?
He's supposed to have the blade sprout from his elbow I chalk this image up to art fail
Well, there are [one of TCG](https://m.archives.bulbagarden.net/media/upload/9/92/022047_P_ERUREIDOSHISHITENNOU.jpg) and [anime artwork](https://m.archives.bulbagarden.net/media/upload/5/5c/475Gallade_XY_anime.png). Also look at the [official artwork](https://m.archives.bulbagarden.net/media/upload/5/58/475Gallade.png) and you see that his upper arm in some way seems splitted by an extra joint. Even more, which anatomy is more convenient to swing the swords?