Arbok (Japanese: アーボック Arbok) is a Poison-type Pokémon. It evolves from Ekans starting at level 22.
Arbok is a serpentine, reptilian Pokémon with purple scales over most of its body. It has lost the rattle it had on its tail as an Ekans. Like a cobra, it can spread out its ribs into a hood, though they always seem to be in this position. On its "hood", it has a design much like an angry face. Studies on the aforementioned design have confirmed that there are six variations.