Spoiler warning. This page gives away the puzzle from 11 August 2025. If you have not played it yet, try it first – five guesses, and it is still there.
Stalls your opponent for three turns, giving you time to strategize.
Type: Spell Card
Set: 2-Player Starter Set
CardMarket price: 0.02$
Text: After this card's activation, it remains on the field, but you must destroy it during the End Phase of your opponent's 3rd turn. When this card is activated: If your opponent controls a face-down monster, flip all monsters they control face-up. While this card is face-up on the field, your opponent's monsters cannot declare an attack.