Koffing (Card #51 102 *Shadowless Borders*) Pokemon Unlimited Base Set (Wizards Of The Coast Collection Series) Rare Vintage (1999) Now And Then Collectibles Market availability is a key factor to consider when to sell Rare cards with a niche interest works very differently from generally high pop cards with deep demand. This is a The Rarest and Most Expensive Pikachu Cards CGC POKEMON TCG Koffing 50 108 Evolutions Appleby Games Vintage Common Set 4 Koffing Team Rocket Non holo Pokemon Cards 58 82 LP Etsy