Game Freak can't add hundreds of new Pokemon and more types every generation or else new games would take too long

Gotta balance 'em all ...
TheGamer on MSN

All new Pokemon forms in Pokemon Pokopia

Pokemon Pokopia may not have any Pokemon species to introduce you to, but there are certainly variants you've never seen ...
nerdist

The Internet Reacts to New POKÉMON WINDS and WAVES Starters

If there’s one thing guaranteed to bring cheer into the lives of people on the internet, it’s a set of new Starter Pokémon. So, of course, the announcement of Pokémon Winds and Waves was met with a ...