Task List/evo lv7

Is there a species of Pokémon you really like? Preferably one with an actual evolution line? You can hoard those Pokémon to always have some Pokémon to evolve. Because the PokéDex sure doesn't require you to evolve 3,000 Pokémon to fill it.

Well, you can of course release the Pokémon after they evolve, but do you really want to let your work go to waste or the Shelter in this case?

For more information on Evolution, check the Wiki.