Infinite Regressions in a Wizarding World

He transmigrated. And he transmigrated into a world of wizards. Before he even had time to adjust to his new identity as “Lynn Shonali,” the transmigrated Lynn received two pieces of news in quick succession: 1. Bad news: He had only just become a wizard apprentice, and had already offended a senior who was a first-rank prospective wizard. That senior planned to use him as a target for spell practice at the next Apprentice Gathering, and kill him in the process. “I just transmigrated and I'm already caught up in this kind of grudge match. What am I supposed to do?!” 2. Good news: He had gained a golden finger called the “Reversal Mirror.” Every time he died, he could rewind to a point in the past. “...?” “What grudge match? So I'm just fighting an NPC?” “If I can reload a save, what do I have to fear? I'll just treat this world like a single-player game!” “Watch me beat it in one life... no, a hundred lives... no, ten thousand lives!” Many years later. Lynn Shonali, who now stood at the peak of the wizarding world, said: “Beating the game is beating the game. Don't worry about what I used.” “I played completely legit. I had a moment of enlightenment, got into the zone, and my talent did the rest. That box on the screen is just screenshot software. I became a god through my own talent and hard work. Thank you.”