Fall from Favor (FDC) from Foundations Commander, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Caio Monteiro
• Card Text:
  Enchant creature
  When this Aura enters, tap enchanted creature and you become the monarch.
  Enchanted creature doesn't untap during its controller's untap step unless that player is the monarch.