Use, Sell, Release!

[Winter]

Use Ralts, Sell Oddish, Release Poochyena

Remoraid, Electrike, Hoothoot.

 

[InfernalStorm]

Use Remoraid, Release Electrike and Sell Hoothoot.

Flaffy, Fennekin, Torchic

 

[Winter]

Use Fennekin, Sell Torchic and Release Flaffy.

Spoink, Nidoran-M, Makuhita.

 

[Nidorina of Time Lord]

Use Makuhita. Sell Nidoran-M, release Spoink.
Swampert, Greninja, Seismitoad

 

[blue]

Use - Swampert
Sell - Greninja
Release - Seismitoad

Bellossom, Cubchoo, Umbreon

 

[Squirrel]

Use the adorable Cuchoo, sell the evil Umbreon, release the pretty Bellossom!

Liepard, Scraggy, Klink?

 

[Sheep]

Use Liepard, sell Klink, release Scraggy. Never cared much for the Scraggy line. ;c

Mewtwo, Arceus, Genesect

 

[Dedenne1]

Use Genesect
Sell Arceus
Release Mewtwo

I rather have cute pokemon but Genesect will do and I'll be a millionaire with the arceus sold haha.

Sylveon, Espeon, Glaceon

 

[Squirrel]

Use the cute Glaceon, sell the gross Espeon, release Sylveon!

Marshtomp, Gardevoir, Toxicroak?

 

[Winter]

Use Toxicroak, Sell Gardevoir and Release Marshtomp

Malamar, Inkay and Jellicent

 

[Dedenne1]

Use Inkay
Sell Jellicent (eww)
Release the Malamar on the world , ( in the anime it almost blows up the poke world D: )

 

[Winter]

...

Lapras, Stunfisk, Greninja?

 

[InfernalStorm]

Use Greninja, Sell Stunfisk (those rookies won't have any trouble beating grunts now lol) and Release Lapras

Pineco, Dunsparce, Mega-Rayquaza

 

[Winter]

Use Mega-Rayquaza because it's now god. Sell Pineco to Rocket and release Dunsparce.

Torterra, Blastoise, Torkoal.

 

[Mr_Nelsy]

Use Torkoal because he's one of my favourite pokemon, Sell Blastoise because every legend needs a good home and release Torterra because he's the new kid trying to get amongst the fame of Tortoise type pokemon.

Urm
Charmander,Piplup,Chespin

 

[blue]

Use - Piplup
Sell - Chespin
Release - Charmander

Omastar, Tyrantrum, Cradily

 

[Squirrel]

Use Omastar, sell Cradily, release Tyrantrum :D

Misdreavous, Cryogonal, Dunsparce?

 

[Dedenne1]

Use Misdrevious
Sell Dunsparce
Release the Crygonal.

 

[Lycanthropy]

Because you didn't state any new Pokémon I'll just pretend you mentioned Dedenne, Emolga and Zoroark, based on your username and signature.

Use Dedenne, sell Zoroark, release Emolga.

Misdreavus, Litwick, Duskull

 

[classiccartoonsftw]

Use Litwick, sell Duskull, and release Misdreavus.

Muk, Stunfisk, and Cryogonal