>>53184018>it wiggles a bit in animations so it’s not completely solid.I feel like the creators don't even know how solid they want it, it's absolutely an unmoving stone in the anime when Midnight uses it to bash things or counterattack, but also like the movie showed it flopping around like fur shortly after they had just headbutted Ash with it.
It's also weird cause the official art shows it underneath the fluff directly connecting into Lycanroc's head, as if it's a part of their bone structure, but like you said it moves around when they do things.
I also have a personal headcanon that Midnight's hunch is at least partially due to them having a massive stone for a mohawk and it weighs them down.