Spoiler warning. This page gives away the puzzle from 6 August 2025. If you have not played it yet, try it first – five guesses, and it is still there.
The only card that can win you the duel instantly if you collect all its pieces.
Type: Effect Monster
Set: 25th Anniversary Tin: Dueling Heroes
CardMarket price: 0.02$
Text: If you have "Right Leg of the Forbidden One", "Left Leg of the Forbidden One", "Right Arm of the Forbidden One" and "Left Arm of the Forbidden One" in addition to this card in your hand, you win the Duel.