What is "deckmasters"

Deckmasters: Garfield vs. Finkel, usually known as simply Deckmasters, was a Magic: the Gathering set created in 2001 featuring copies of the decks used in a promotional match between Richard Garfield, the creator of the card game, and Jon Finkel, a Magic World Champion. Two decks were included in the set, a red/green deck used by Richard Garfield, and a red/black deck that was played by Finkel. It is the fifth compilation set.