Yu-Gi-Oh! Duel Monsters: Season 1, Episode 158

1 - 158: Darkness Inside Yugi - Timaeus Vanishes

Using the awesome abilities of Seal of Orichalcos, Yugi grinds Rafael’s guardians into garbage... but he’s also slowly succumbing to the card’s evil influence! As darkness grows within his heart, Yugi’s monsters turn sinister! Yugi will do anything to win, including indiscriminately forsaking his precious monsters, but the consequences of his non-heroic acts may be his undoing!