"It's quite simple, you see. If I'd known the rules from the beginning, that is, before I "died", it would've been even simpler. But then again, I suppose that's why you don't tell us until after the fact."
"There's an old saying that it takes 10,000 hours to master any skill, or around 400 days of constant practice. Ordinary that'd be impossible for a human being to achieve in a single year, but I started with skills I already had some proficiency in, and you'd be surprised what we mortals are capable of under the right pressure. So it wasn't easy, but I was able to perfect a skill to the point where I'd be sure to win my next challenge with 2 months to spare."
"I thought about taking a break, but then I realized one skill wasn't enough. I was lucky to win my first challenge. I'd eliminated luck this time, but I knew you'd eventually rule that it had to be a different challenge each time. So I started on my second skill."
"It was after my third challenge that you finally added that rule. By that time I'd been able to successfully master two extra skills. In other words, I had enough different abilities to buy me at least two more years."
"There's another thing about mastering skills that most people don't have time to appreciate: the more you do it, the easier it gets. There's a lot more overlap than you'd expect between most things, and of course I picked up a lot of good practice habits. In other words, after learning three skills, I was a very quick study for the forth, and fifth, and sixth. By the time my two-year buffer was up, I'd mastered 3 more skills. And by the time those three were spent, I'd mastered 6 more, and so on and so on. No matter how many years past, no matter how many different challenges we played, my assorted skills only ever increased."
"And so here we are. Year 513. A whole 513 challenges, and I'm already prepared for 513 more. I don't even have to pick up new skills anymore, I've got so much time that as long as I practice my current skills as to not fuck up challenges in the meantime, I'll just pick up new skills over the course of living for centuries on end. Quite frankly, I am confident that I will never die."
"So, God of Death, old friend, here is my chosen challenge this year. Not a contest, but a test. Should you succeed, I will gladly die: find someone that could call themselves my equal."
The God of Death laughed, and as the man gazed upon them, thinking back to all the challenges they played, all the times they nearly gave him a run for his money, he felt something he hadn't felt in centuries: the feeling of fear.
Perspective was never his strongsuit, and there were more skills yet to master.