Kaiser Colosseum - MFC-031 - Common - 1st Edition from Magician's Force 1st Edition, available at 401 Games Canada.

• Rarity: Common
• Card Text:
  When there is 1 or more monster on the field of the controller of this card, his/her opponent cannot place a monster on the field if the opponent would then have more monsters on the field than the controller of this card.