Carbink
Our third pokemon in a row that doesn't evolve, this rock/fairy pokemon is actually a sort of "imperfect" version of a legendary we'll be seeing later, which is interesting, but I personally like Carbink a lot more on its own. It's a shame it's not more usable, because a condensed, coal-like subterranean fairy is a very cool concept. I love that it's just this floating hunk with a rabbit-like head peeking out and no other major appendages.
Unique, but neglected