Huh... I'd actually been expecting some sort of mega-hybrid form, rather than a straight up dragon (in the previous chapter I thought that the spines were actually crab pincers or the like, and a crab had been one of the silhouettes in chapter 43 of her forms). Still very impressive, I've got to say.
I suppose the Kitsune will still win, or the Tanuki's mind/power will go out of control and she'll collapse before the fight properly concludes, but anyway...