I like Slowking and Ninetales, although they might be a bit situational, at least Nintetales provides a decent support card for Charizard decks, which means filling up the bench with fire Pokémon might actually be a good idea. Add a pretty decent Basic Vuplix to that (Pt) and you might actually have a decent deck.
Pokémon communicator, Pokémon colector and Pokégear are all pretty useful, Oak's new theory is meh now that Copycat gets reprinted anyway.
Also, the unown card is massively broken, why did they have to make it so rare? :'(