RT Dr.Porny (@DrPorny).@ColdBloodShill gives a beginner’s guide to trading cards and how to spot good deals"No. 1 is—you’re gonna wanna be able to be on eBay quite a lot. eBay is actually a really good resource for a lot of buys; it’s a really simple marketplace for buying things.""And you wanna be using Card Ladder. Card Ladder is a paid app, but what you can do is basically take a photo of a card, and Card Ladder will bring up all of the last sales for that card. So you can immediately price the card base ...