In Yu-Gi-Oh, but Mechanical Ascension (1-148).

Summary

Marutou Ryou initiates a duel by summoning "Electronic Dragon Core," retrieving "Electronic Emergency Signal," and subsequently fusing it with another "Electronic Dragon" to summon "Electronic Twin Dragon." Confident of victory, he prepares to attack three times. However, You Feng counters by activating "Enemy Controller," taking control of Ryou's "Chimera Fortress Dragon." Ryou, frustrated, ends his turn. You Feng then uses "Electronic Dragon Core" to summon his own "Chimera Fortress Dragon." The duel intensifies as Ryou attacks, destroying You Feng's dragon. You Feng plays "Future Fusion," leading to the summoning of "Chimera Aggregate Overload Dragon," but Ryou activates "Fusion Prohibition Zone," preventing any further fusion summoning.

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