In 1999, Burger King sold these 23 karat gold-plated Pokmon cards for just $1.99 The set featured Charizard, Pikachu, Jigglypuff, Mewtwo, Poliwhirl, and Togepi, each sealed inside a Pok Ball case with a certificate
The colors work very strongly together on graveyard synergies in both Ravnica block and Theros block, and Abrupt Decay is a really well positioned card in Standard that I think was just waiting for better mana
According to Card Kingdom at the time of writing, the most expensive card from the Final Fantasy Magic: The Gathering set is the black ink, foil, borderless Traveling Chocobo card that's currently only available in Japanese
Unfortunately for those lycanthrophiles among us, it took them another 12 years to finally do it but at least this card was worth the wait