Crustle is a Bug & Rock type and is the evolved form of Dwebble. Crustle has an alright design, it's nothing bad necessarily, but just one of those designs that doesn't really appeal towards my tastes. However, Crustle has alright stats, an alright movepool & alright abilities, so it is a decent pokemon for in playthroughs (although I have never used it in a playthrough myself, it's one I might consider using in future.) Overall, Crustle is cool, just looking at the stuff left, it appealed the least so that's why I ranked it here.