Blades comprise this Pokémon’s entire body. If battling dulls the blades, it sharpens them on stones by the river.
– Pokemon Black Pokedex
Pawniard’s Pokedex entry, and its appearance, makes it seem like owning one would be quite painful, you’d get cut if you get too close to it.
Pawniard’s type of Dark/Steel is unique to its family. It has three weaknesses, including a double weakness to Fighting.
Stat-wise, Pawniard has good Attack, decent Speed, and Defense.