22 pokemons

1 Dewgong (good HP, strong attacks)
2 Seel (to evolve into Dewgong)
1 Wartortle (strong attack)
2 Squirtle (to evolve into Wartortle)
1 Poliwhirl (strong attack)
2 Poliwag (for one hit K.O.)
1 Magikarp (flail is strong)
2 Charmeleon (strong attacks)
4 Chamander (to evolve into Chameleon)
2 Magmar ( strong attack)
1 Ninetales (fire blast is strong)
2 Vulpix (to evolve into Ninetales)

8 Trainer cards

1 Full Heal (in case our pokemons are poisoned, paralyzed, confused, asleep...)
1 Imposter Professor Oak(to trade away opponent's good hand)
2 Revive (to get our pokemons back!)
2 Gust of Wind (in case opponent has really good pokemons)
2 Potion (in case a good pokemon almost gets knocked out)
1 Energy Retrieval (to get more energy, energy cards are always useful)

18 fighting energy, 12 leaf energy