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

Summary

Pandora, having successfully restrained You Feng, confidently enters the Battle Phase, attacking with her [Dark Magician] and dealing significant damage to You Feng, reducing his life points drastically. As she revels in her advantage, You Feng, despite being on the brink of defeat, draws a crucial card: Fusion. He fuses his monsters to summon the powerful [Fusion Rampage Dragon]. Though Pandora believes her continuous spell card will hinder You Feng's momentum, he counters by activating the effect of his new monster, targeting and destroying her spell card, setting the stage for a potential comeback.

Full content