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Magic: The Gathering/Highlander Format
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Highland Format takes its name from a memorable line from the movie 'Highlander': There can be only one!. Only one copy of any Magic card (other than basic land) is allowed in a highlander deck. Any magic format can be converted into a highlander-type format if this rule is followed.