This is a good article. Art of magic the gathering pdf the link for more information.
This article is semi-protected until July 10, 2018. Limited formats involve players building a deck spontaneously out of a pool of random cards with a minimum deck size of 40 cards. The other major category of formats is constructed. In constructed, players created decks from cards they own, usually 60 cards with no more than 4 of any given card. During his free time he worked with local volunteer playtesters to help refine the game.
Adkison saw the game as very promising, but decided that Wizards of the Coast lacked the resources to produce it at that point. Garfield returned and presented the general outline of the concept of a trading card game. Adkison immediately saw the potential of this idea and agreed to produce it. The legal action was settled out of court, and its terms were not disclosed. Early on they were even reluctant to advertise the game because they were unable to keep pace with existing demand.