19 pokemons

1 Wartortle (good fighter)
2 Squirtle (to evolve into Wartortle)
1 Dewgong (the fighter)
2 Seel (to evolve into Dewgong, high HP)
1 Starmie (high HP)
2 Staryu (for quick 20 damage)
1 Poliwag (for 1 hit K.O.)
2 Jynx (good starter, medicate is cool)
2 Haunter(to make others sleep and dreameater rocks)
2 Gastly (to evolve into Haunter)
1 Kadabra (high HP)
2 Abra (bad but can evolve into Kadabra)

11 Trainer cards

2 Bill (gotta have these)
2 Revive (in case good pokemons gets knocked out)
2 Gust of Wind (blow away strong opponent)
2 Potion (save our pokemons!)
2 Pokedex (in case our deck is not in good order)
1 Full heal (in case our pokemons is alsleep, poisoned, confused or paralyzed)

17 water energy, 13 psyhic energy