Ok, I'm just gonna say this:
I REALLY don't like this Pokémon. And it's not because it's an inanimate object or even because it's a key... well, ok, MOSTLY not because its a key. But because it's Steel/Fairy type.
I'm not saying that combo wouldn't work in any way, but with THIS... I just can't really get behind it. That, and the design is kind of a bit jarring to me too.