Pokemon types evolve with each game generation, showing growth from 15 to 18 types over the series. Water-type Pokemon dominate single type, while Normal and Grass types lead the way in total numbers.

Everything in the Sewaddle evolution line is a Bug/Grass-type Pokémon. (Image via pokemon.com) Sewaddle evolves into Swadloon with 25 Sewaddle Candy in Pokémon Go. Swadloon, in turn, evolves ...