If you can play both Belle and The Beast, hell throw away items, and shell turn them into useful tools, creating a give-and-take system that works well in story, and as a game mechanic
Swinub Illustration Rare (165/159) This adorable little guy is actually really useful early-game
Eevee ex deck list This Eevee ex deck only utilizes Fire Energy, since Leafeon ex can power up itself with Grass Energy, and Sylveons only role is to become a wall and a third Professors Research: x2 Eevee (Eevee Grove) x2 Eevee ex x1 Leafeon (Space-Time Smackdown) x2 Leafeon ex x2 Flareon ex x2 Sylveon ex x2 Professors Research x1 Mars x1 Red x1 Red Card x1 Eevee Bag x2 Pok Ball x1 Giant Cape Your goal for this deck to work is to evolve your Eevee cards as soon as possible and demolish your opponents Active Pokmon with either Flareon ex or Leafeon ex
I feel like everything fits so well
The one-mana tutors, like Mystical Tutor, each search your library for a card and place it on top
When you have a deck built around hitting hard and quick, those extra bodies with prowess go a long way