Trading Card Games (TCGs) have evolved from simple entertainment into collectibles and investments. But what determines a TCG card's value? Several factors contribute to making a TCG card a prized ...

More: A rare Italian vase bought at Goodwill for $3.99 was just sold for over $100,000 This article originally appeared on USA TODAY: How much are your old Pokémon trading cards worth?

Their uniqueness and rarity give them value. Some of the ... Gods Unchained is the world's first free-to-play multiplayer blockchain-based game. The NFT trading card game uses the Ethereum blockchain.