Historical Rules · 18 June 2010
Rule 800.3
Official source text from the 18 June 2010 Rules release
Many multiplayer _Magic_ tournaments have additional rules not included here, including rules for deck construction. See the most current _Magic: The Gathering_ Tournament Rules for more information. They can be found at <http://www.wizards.com/Magic/TCG/Events.aspx?x=dci/doccenter/home>.