Monster Zone

Monster Zone
Japanese	モンスターゾーン Formerly: モンスターカードゾーン
Japanese (romanized)	Monsutāzōn Formerly: Monsutākādozōn
English	Monster Zone Formerly: Monster Card Zone
Other names French: Zone Monstre Formerly: Zone Carte Monstre German: Monsterzone Formerly: Monsterkartenzone Italian: Zona Mostri Formerly: Zona Carte Mostro Korean: 몬스터 존 Monseuteo Jon Formerly: 몬스터 카드 존 Monseuteo Kadeu Jon Portuguese: Zona de Monstros Formerly: Zona dos Cards de Monstro Spanish: Zona de Monstruos Formerly: Zona de Cartas de Monstruos Traditional Chinese: 怪獸區 Guàishòuqū / Gwaai3 sau3 keoi1 Formerly also: 怪獸卡牌區 Guàishòukǎ Páiqū / Gwaai3 sau3 kaat1 Paai4 keoi1

Monster Zones (モンスターゾーン Monsutāzōn), formerly Monster Card Zones (モンスターカードゾーン Monsutākādozōn), are the 5 upper-middle blur brown boxes as depicted in this picture. You can only have in play, at any one time, 5 Monster Cards and/or Monster Tokens. If all 5 Monster Zones are occupied, then you cannot Summon another monster, unless you Tribute one or more of them first or use them for a Fusion/Ritual/Synchro/Xyz Summon.

Some cards, such as "Ojama King", "Ojama Knight", and "Ground Collapse" affect the number of Monster Zones that are usable.