Shadow Era is an iOS app that came out a long time ago -- it successfully combines a collectible card game (fairly similar to the World of Warcraft card game, if you've ever played that one) with a freemium business model, a plan that has worked out very well for developer Kyle Pool. So well, in fact, that he announced a little while ago that Shadow Era would be getting physical cards to go along with the iOS title, and indeed, the company has announced that Call of the Crystals, the first physical version
