Arbok

Description
This Poison type Pokémon can release such a strong poison that it can circulate the blood stream in less than a minute. A reptilian 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 seem to always 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. His name is kobra backwards.

Evolution
--Lvl 22-->

Location
Diglett's Cave: (uncatchable)

Pokemon Adoption (Ready for Battle Non-Shiny Pokemon)

Shiny
Evolve shiny Ekans.