These are the proposed added sets:
- Ivysaur, Wartortle, and Charmeleon (don't need Pikachu and Eevee)
- Venusaur, Blastoise, and Charizard (don't need Pikachu and Eevee)
- Bayleaf, Croconaw, and Quilava
- Meganium, Feraligatr, and Typhlosion
- Grovyle, Marshtomp, and Combusken
- Sceptile, Swampert, and Blaziken
- Grotle, Prinplup, and Monferno
- Torterra, Empoleon, and Infernape
- Servine, Dewott, and Pignite
- Serperior, Samurott, and Emboar
- Quilladin, Frogadier, and Braixen
- Chesnaught, Greninja, and Delphox
- Dartrix, Brionne, and Torracat
- Decidueye, Primarina, and Incineroar
- Thwackey, Drizzile, and Raboot
- Rillaboom, Inteleon, and Cinderace
- Dartrix, Dewott, and Quilava
- Hisuian Decidueye, Hisuian Samurott, and Hisuian Typhlosion
- Floragato, Quaxwell, and Crocalor
- Meowscarada, Quaquaval, and Skeledirge
In addition, you could possibly include Megas and G-Max forms:
- Mega Venusaur, Mega Blastoise, Mega Charizard X, Mega Charizard Y
- Mega Sceptile, Mega Swampert, Mega Blaziken
- G-Max Venusaur, G-Max Blastoise, G-Max Charizard
- G-Max Pikachu and G-Max Eevee
- G-Max Rillaboom, G-Max Inteleon, G-Max Cinderace