18 pokemons

2 Raichu (for one hit K.O)
2 Pikachu (to evolve into Raichu)
2 Charmeleon (high HP, good attacks)
4 Charmander (to evolve into Charmeleon)
2 Magmar (for a quick 30 damage)
3 Ponyta (for normal attacks)
1 Arkanine (strong attacks)
2 Growlithe (to evolve into Arkanine)

12 Trainer cards

3 Bill (gotta have some of these!)
2 Potion (to heal our pokemons)
2 Revive (if a good pokemon is knocked out)
1 Energy Retrieval (to get more energy for these energy users)
2 Gust of Wind (to get opponent's weaker pokemons out)
1 Pokedex (to organize our deck)
1 Pluspower (for more damage)

20 fire energy, 10 thunder energy