1 Wolfwillow Haven
With no current PSA 10 listings online and a VERY low PSA pop report, a gem mint card would give you some SERIOUS return on investment (easier said than done, I know)

The rarity table for Base Set 2 is give below: image881763 16.9 KB The uncommons sheet (including the obscured cards) is as follows: Dodrio, Butterfree, Machoke, Defender, Arcanine, Dratini, Exeggutor, Dewgong, Energy Retrieval, Haunter, Farfetchd, Ivysaur, Marowak, Full Heal, Fearow, Kakuna, Magikarp, Maintenance, Charmeleon, Lickitung, Nidorina, Rhydon, PlusPower, Growlithe, Persian, Nidorino, Poliwhirl, Pokmon Center, Growlithe, Raticate, Parasect, Machoke, Pokdex, Pokmon Center, Tauros, Weepinbell, Seaking, Professor Oak, Jynx, Double Colorless Energy, Butterfree, Marowak, Super Potion, Magikarp, Magmar, Haunter, Exeggutor, Dodrio, Seel, Defender, Arcanine, Seaking, Kadabra, Weepinbell, Energy Retrieval, Jynx, Dewgong, Farfetchd, Ivysaur, Rhydon, Full Heal, Haunter, Fearow, Kakuna, Wartortle, Maintenance, Charmeleon, Lickitung, Nidorina, Machoke, PlusPower, Magikarp, Persian, Nidorino, Dewgong, Pokmon Center, Growlithe, Raticate, Parasect, Poliwhirl, Double Colorless Energy, Marowak, Tauros, Weepinbell, Charmeleon, Pokdex, Magmar, Double Colorless Energy, Seel, Professor Oak, Arcanine, Dratini, Butterfree, Super Potion, Rhydon, Defender, Farfetchd, Parasect, Poliwhirl, Kadabra, Fearow, Exeggutor, Seaking, Energy Retrieval, Lickitung, Ivysaur, Full Heal, Professor Oak, Dratini, Kakuna, Super Potion, Wartortle, Maintenance, Raticate, Nidorina, Seel, PlusPower, Persian, Nidorino, Wartortle, Kadabra The commons sheet has the card sequence shown below

A single PSA 10 Charizard is worth more than many new cars
On your first search, you fan through your deck and realize your only copy of Boss's Orders is in your Prize cards