There Can Be Only One - SDAZ-EN038 - Common - 1st Edition from Structure Deck: Albaz Strike 1st Edition, available at 401 Games Canada.

• Rarity: Common
• Card Text:
  Each player can only control 1 monster of each Type. If a player controls 2 or more monsters of the same Type, they must send some to the GY so they control no more than 1 monster of that Type.