Pro Set trading cards product, which could make and issue cards very quickly. For its first football card set in 1989, Pro Set released its cards in three series. The 1989 rookies were found primarily in the second series. Key rookies in the set included Troy Aikman, Barry Sanders, Derrick Thomas, Jeff Lageman and Deion Sanders. The 100 card Series II set was sold in packs, but the packs averaged 11 Series I cards and 4 Series II cards per pack. These cards not only featured first round picks but featured later round picks. These cards were labelled as Pro Set Prospects. At its
Magic: The Gathering video games The Gathering", so further implementations of other card games are possible. Currently Firemox has around 6,000 "Magic: The Gathering" cards available. Forge (previously known as MTG Forge) is an open source Java program with rules enforcement; it also attempts the more difficult problem of artificial intelligence for a computer player. Currently it has over 13,000 cards (as of February 7, 2013). Lackey CCG is an engine that attempts to simulate many card games. It has a plugin which contains over 13000 "Magic" cards, some of which are different editions of the same card. Like older attempts, the rules of play