Yu-Gi-Oh!: The Dead-Last Actually Turns Out to Be the Strongest Summoner, Aleister

Yuli, a duelist who'd been playing cards for two and a half years, transmigrated. Yuli: "You mean my guardian spirit is the legendary [Summoned Skull Aleister]? I can learn Summoning Magic from him and print cards whenever I want? Heh heh. I was going to treat you all like equals as Osiris Red's bottom-of-the-barrel loser, but you treated me like I was some kind of tyrant. I'm done pretending. Let's see what modern Fusion Summoning can really do!" Judai: "You call banishing my monsters from the Graveyard Fusion Summoning?" Yuli: "Why wouldn't it count?" Misawa: "Why does each of your Summoned Beasts have six different Attributes?" Yuli: "Because I haven't printed the Divine Attribute one yet." Asuka: "Why is Dark Magician Girl in your Aleister deck?" Yuli: "Can't help it. There are too many card spirits. Just bear with it." The Supreme King: "Please, teach me how to use Super Polymerization!" Yuli: "You want to learn? Sure, I'll teach you." In short, this is the story of a duelist who would later be called "the strongest Summoner in history."