Card Appearances:Decago Knight
- In episode 116, Clark Smith uses this card during his Concentration Duel against Yusei Fudo. On the fifth turn, Clark declares that he is activating a Spell Card and flips over "Fair Exchange". He then activates the effect of "Fair Exchange" to send three copies of this card to his Graveyard and force Yusei to send cards from the top of his Deck to the Graveyard equal to the combined Levels of the sent monsters. Since the combined Levels of the three copies is thirty, Yusei is forced to send the top thirty cards of his Deck to the Graveyard. Clark's move had also left Yusei with only nine cards remaining in his Deck. Clark then activates this card's effect to return all three copies to his Deck. Later Yusei declares he is activating a Trap Card and flips "Future Battle". Yusei then activates the second effect of "Future Battle" to select and reveal one of Clark's face-down cards. It's revealed to be this card who is immediately Special Summoned. Due to the fourth effect of "Future Battle", "Stardust Dragon" attacks and destroys this card. As "Stardust Dragon" destroyed a monster in battle, the last effect of "Future Battle" activates, allowing Yusei to activate the second effect of "Future Battle" once again. Yusei then activates the second effect of "Future Battle" to select and reveal another one of Clark's face-down cards. It's revealed to be this card who is immediately Special Summoned. Due to the fourth effect of "Future Battle", "Stardust Dragon" attacks and destroys this card. The last effect of "Future Battle" activates, allowing Yusei to activate the second effect of "Future Battle" once again. Yusei then activates the second effect of "Future Battle" to select and reveal another one of Clark's face-down cards. It's revealed to be this card who is immediately Special Summoned. Due to the fourth effect of "Future Battle", "Stardust Dragon" attacks and destroys this card, winning Yusei the Duel.
- Three copies of this card also appear in a flashback Yusei has when he notes to himself Clark had guessed three copies of the same card correctly when he correctly guessed 6 cards. Yusei wonders if that's possible. Soon Yusei deduces that Clark is cheating and this is confirmed when Yusei notices that Clark's cards' types are being reflected from his glasses.
