Buying and selling trading cards is becoming an increasingly risky business. With the value of cards increasing significantly over the past several years, the market for fake cards and scams has also grown. The card collecting community, in turn, has asked platforms like eBay to begin helping both buyers and sellers establish the legitimacy of sales. eBay has now responded to these requests, acquiescing and confirming that it will support trading cards with its Authenticity Guarantee going forward.