Fairy Box - LON-EN024 (C) (Yugioh)
Continuous Trap
Each time a monster on your opponent's side of the field attacks, toss a coin and call Heads or Tails. If you call it right, the attacking monster's ATK becomes 0 only during the Battle Phase. Pay 500 Life Points during each of your Standby Phases. If you cannot, this card is destroyed.
Attack: 0
Defense: 0
Attribute: TRAP