"MTGO" traderscan purchase game cards from the official MTGO Traders website, as of 2014. This site also allows individual players to sell their online collections or paper cards.
"MTGO," or "Magic: The Gathering Online," is a virtual card game based on the live-action card game, "Magic: The Gathering." Using a virtual economy, "MTGO" maintains the value and collectible nature of cards and decks. The game is often used by professional card players to practice before tournaments. Players must use an Internet service operated by Wizards of the Coast through Microsoft Windows to play the game and trade cards.
The game features digitalized artwork that recreates the look of the paper-based game, and users place cards on a virtual tabletop. Players can set up or join games at any time, and each game is hosted by a server that applies a set of rules. The game has been released in several versions, with Version 4.0 opening to the public in 2012.
According to Wikipedia, more than 90 percent of cards used in the original "Magic: The Gathering" game are available in the online version. Although digital versions were originally only released three to four weeks after the release of the paper sets, this wait time was later shortened to approximately two weeks.