Poison-types were more common than any other type of Pokémon in PokémonRed, Blue, and Yellow. While this is no longer true, it's for the best, as the typing has come to value quality over quantity.

Imagine a Charmeleon has a Fire-type attack that does 100 neutral damage. If it hits another Charmeleon, it will do 1.0x damage ... Best Poison-type attackers in Pokémon Go Here you'll find ...