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| Main Monster Zone
Mein Monsutā Zōn
Main Monster Zone
In the OCG, as per Master Rule 4, monsters cannot be Summoned from the Extra Deck to a Main Monster Zone, unless it is a Linked Zone; instead, they must be Special Summoned to an Extra Monster Zone. If control of a monster in an Extra Monster Zone is changed, it is placed in the Main Monster Zone (even if control is changed back later).