Metapod

From the Pokémon Encyclopedia

Metapod is a very weak Pokémon, comparable to Magikarp. It is vulnerable to attack while its shell is soft, exposing its weak and tender body. Its only defense is its hardening ability; its only attack, Tackle once it reaches sufficient level. Its chief merit is that it evolves into Butterfree. It is a Bug Pokémon. Its species is Coccoon Pokemon. It is 2ft.7in. tall and weighs 22lbs. Its ability is Shed Skin. Protect Metapod form hungry bird Pokemon and try to evolve it quickly.