Marowak

The final stage of evolution for Cubone, Marowak's bone is its key weapon. It throws the bone skillfully like a boomerang to knock out targets. In "Bad to the Bone," Ash and friends leave Pallet Town to go to the Pokemon League. On their way, they meet a trainer named Otoshi who challenges Ash to a Pokemon match. The battle begins between Otoshi's Marowak and Bulbasaur. Bulbasaur loses, but Pikachu steps in and blasts Marowak into defeat.

First appearance: Episode 77—"Bad to the Bone"