Tenth Edition (10th Edition) is the latest "Core Set" for the collectible trading card game Magic: The Gathering. It was released on July 13, 2007, replacing Ninth Edition as the core set of cards for standard tournament play. The symbol for 10th Edition is the Roman numeral "X." As part of their "Selecting 10th Edition" promotion, Wizards of the Coast gave fans the chance to manage a part of the set's brand. The results gave the Roman numeral "X" over the number "10," along with many other card, art, and flavor text choices.