If you like to tinker with Magic cards, virtual environments make for fast, easy experimentation. But up until now, doing so for Duels of the Planeswalker decks was a royal pain in the assassin.
Lucky for us, a coder known as MisterP has created a web-based Duels 2013 deck browser. As he explained in his initial post at the WOTC forums, this tool has everything you need to toy around with Duels card lists, including the new Return to Ravnica DLC decks. The interface is incredibly fluid and intuitive, allowing you to add/remove/count cards instantly.
There are no costs, no installation required, and it basically does all the hard work for you, so what are you waiting for? Go check out MisterP’s masterpiece now.