019 - Rattata

Rattata is a Normal type Pokémon. It evolves into Raticate at level 20.

Pokdex
Its fangs are long and very sharp. They grow continuously, so it gnaws on hard things to whittle them down.

Trivia
-A Rattata caught by yourself and raised to level 80 is required to be able to challenge Joey in order to proceed to Hoenn.