Original sentence: It is possible that this was because the company was looking for a way to lower costs and gain more control over printing as Magic's playerbase grew larger and more international
Edited sentence: Although it was never reprinted, the mechanic of a land turning into a creature has been revisited numerous times since.Ball Lightning: This extremely aggressive and short-lived creature eventually proved to be too powerful.Cards appearing in the basic set for the first time included:.Crystal Keep: Fourth Edition overview.However, it did make some older cards newly available, supplementing the often limited printings of early sets.It formed the basis for many powerful combinations with other cards, and was restricted to one per deck along with Strip Mine.It is possible that this was because the company was looking for a way to lower costs and gain more control over printing as Magic'''s playerbase grew larger and more international.It was removed from Sixth Edition, although variants appeared in Invasion, Onslaught, and Planar Chaos.Land Tax: Initially dismissed as a bad card, Land Tax's ability to draw multiple land cards from a player's deck each turn proved to be a decisive source of card advantage.Like other basic sets, Fourth Edition introduced no cards that had not yet been printed.Mishra's Factory: The Factory, a land that could easily turn into a creature, was also used in a broad range of Standard tournament decks.Strip Mine: For more than a year after Fourth Edition came out, the Mine was automatically included in almost every deck in the Standard (then called "Type II") tournament format.Sylvan Library: Being able to look at the top three cards of one's library each turn, and select the best to draw (or pay life to draw multiples) made this a powerful addition to many control decks.The omnipresence of Strip Mine led to its being restricted by the DCI in mid-1996 to one per deck, and its removal from Fifth Edition.Wizards' official site on Fourth Edition