Mystic Mine [MGED-EN047] Gold RareSet: Maximum Gold: El Dorado Card type: Field Spell Rarity: Gold Rare If your opponent controls more monsters than you do, your opponent cannot activate monster effects or declare an attack. If you control more monsters than your opponent does, you cannot activate monster effects or declare an attack. Once per turn, during the End Phase, if both players control the same number of monsters: Destroy this card.