Use, Sell, Release!

[Hikamaru]

Use Lairon, Sell Haunter, Release Seadra

Glameow, Skitty, Purrloin

 

[Sopheria]

Use Skitty, sell Glameow, release Purrloin.

Oshawott, Horsea, Smoochum

 

[Nidorina of Time Lord]

Use Horsea, Sell Smoochum and release Oshawott.

Girafarig, Eevee and Alomomola

 

[Hikamaru]

Use Eevee, Sell Alomomola, Release Girafarig

Finneon, Goldeen, Barboach

 

[Winter]

Use Gabite because it's one of my favourite dragons. Sell Pikachu to Team Rocket so that I can rightfully demand every dollar off them. Bye Deerling, not sorry.

Mawile, Corsola, Delibird

 

[Nidorina of Time Lord]

Keep Corsola, sell Delibird and release Mawile

Pidgey, Caterpie, and Tentacruel

 

[Gulpin]

Use Tentacruel, sell Pidgey, release Caterpie

Carbink, Alomomola, Trubbish

 

[Hikamaru]

Use Carbink, Sell Alomomola, Release Trubbish

Paras, Corphish, Dwebble

 

[Nidorina of Time Lord]

Use Paras, sell Dwebble and release Corphish

Goldeen, Golbat and Golduck

 

[Gulpin]

Use Golbat, sell Goldeen, release Golduck

Anorith, Tirtouga, Amorua

 

[Sirfetch’d]

Use Amaura, Sell Tirtouga, Release Anorith!

How about...Ursaring, Octillery, and Skarmory?

 

[Hikamaru]

Use Ursaring, Sell Octillery, Release Skarmory

Geodude, Roggenrola, Rhyhorn

 

[Gulpin]

Use Roggenrola, sell Rhyhorn, release Geodude

Hitmonlee, Hitmonchan, Hitmontop

 

[Sirfetch’d]

Use Hitmontop because it spins 8D, sell Hitmonchan, and release poor Hitmonlee :(

Slurpuff, Diancie, Gardevoir

 

[Hikamaru]

Use Gardevoir, Sell Diancie, Release Slurpuff (ugh why so hard I love Fairy-types)

Stoutland, Watchog, Cinccino

 

[Sirfetch’d]

Use Cinccino, sell Stoutland, and release Watchog!

Budew, Oddish, Bellsprout

 

[Winter]

Use Budew since it evolves to Roserade xoxo
Sell Bellsprout and Release Oddish, though the options can be switched idrc.

Durant, Drifblim, Dewgong.

 

[Sirfetch’d]

Use Drifblim because it's a favorite of mine, sell Durant, and release Dewgong

Starmie, Onix, Froslass

 

[Lycanthropy]

Use Starmie as it's one of my favorites, sell Froslass and release Onix.

 

[Nidorina of Time Lord]

Well, there's nothing to pick from so...

Inkay, Pancham and Sylveon!