2010 Pokemon World Championship Masters Key $66,000 Given to finalists of the 2010 Pokemon World Champion, Masters Key rarity makes it one of the most valuable promotional cards, despite being printed later than most other cards on this list
Champion Your Strategy Build your deck from premium packs filled with 7 Commons, 3 Uncommons, 2 foil Rares or better, 1 foil of any rarity, and 1 token slot
Specifically, it was a card known as thedie-cut Wagner, which disappeared in the mid-1990s, only to find its way into Olbermanns vast card collection in one of the more bizarre stories of rare collectors items
The single most important card in the game for me was probably Three Tree City, in that my pivotal turns in the late game were made possible by the extra mana I got from that amazing land
Its also one of the best options that dragon decks have for reviving their monsters