Who let him play Yu-Gi-Oh! (1-460).

Summary

In Chapter 300, the Demon Overlord uses the magic card 'The Magic Book in the Pot' to draw three cards and summons the powerful Evil Emperor Gai Wu Si. He boasts about his newfound strength and banishes You Xuan's Green Baboon from the field. You Xuan counters with a trap card that returns the Evil Emperor to the top of the deck, causing the Overlord to panic. The Overlord attempts to regain control by using the 'Gate of Counterattack' and summons the Evil Emperor again, banishing another Green Baboon. However, You Xuan responds by summoning Wind Emperor Laiza, which forces the Evil Emperor back to the top of the deck once more, leaving the Demon Overlord in despair.

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