Updated April 22, 2013

Constructed decks must contain a minimum of sixty cards. There is no maximum deck size; however, you must be able to shuffle your deck with no assistance. If a player wishes to use a sideboard, it must contain exactly fifteen cards.

With the exception of basic land cards, a player’s combined deck and sideboard may not contain more than four of any individual card, counted by its English card title equivalent. All cards named Plains, Island, Swamp, Mountain, and Forest are basic. (The five Ice Age block snow-covered lands -- Snow-Covered Plains, Snow-Covered Island, Snow-Covered Swamp, Snow-Covered Mountain, and Snow-Covered Forest -- are also basic lands. Note that snow-covered lands are permitted only in formats that allow expansions from the Ice Age block to be used.)

The following card sets are permitted in Extended tournaments:

• Zendikar
• Worldwake
• Rise of the Eldrazi
• Magic 2011
• Scars of Mirrodin
• Mirrodin Besieged
• New Phyrexia
• Magic 2012
• Innistrad
• Dark Ascension
• Avacyn Restored
• Magic 2013
• Return to Ravnica
• Gatecrash
• Dragon's Maze (effective May 3, 2013)
• Magic 2014 (effective July 19, 2013)

The following cards are banned in Extended tournaments:

• Jace, the Mind Sculptor
  
• Mental Misstep
  
• Ponder
  
• Preordain
  
• Stoneforge Mystic
  

Official information about Constructed formats and the Extended format can be found in the Magic: The Gathering Tournament Rules.