I adored this story. I'm a gamer, to the core, and I will play card games almost anywhere. I even broke up with a girl in college because she scoffed and said "I don't play stupid card games" when I suggested we kill time between classes with a quick game.(I always carry a pack of cards with me) Wilson's narration was awesome, though I could tell in certain parts that he was Canadian from his pronunciation or use of certain words. Not sure which ones now. That did not detract from the story at all, however, as I think he did a great job with the Southern accent.
As for the magic system: At first, I was reminded of
The Deck of Many Things, from Dungeons and Dragons, and more specifically, an alteration I made to the DoMT for my D&D group many years ago. I did something similar to this story, where a character got a deck imbued with magic, and the different suits provided different effects though not nearly as many as in this story. The power of the effects went up as the number went up, and there was definite caution on the part of the player who got them. Knowing there is a limited amount of power at your hands is both entertaining and maddening, because you never know if the power will be enough, too much, or when you're really going to need that ace.
Sure there were better ways that he could have killed his uncle, and maybe the magic system was flawed, but it certainly didn't bother me, and I didn't notice it until people in this thread mentioned it.