Yu-Gi-Oh! Duel Monsters: Season 1, Episode 14

1 - 14: The Light at the End of the Tunnel

Pegasus's hired duelist Panik cheats Mai of all her star chips, and Yugi vows to defeat him and win them back. But when Panik's Castle of Dark Illusions enshrouds his monsters in a black mist, how can Yugi defeat an enemy he cannot see?