I understand the mechanics and how you'll earn from this. It's a P2P/PvP gambling and you'll be taking share for each of winner's take from his opponent's money. That's a good business model if you don't want to spend money on your own and the casino will just serve as a hub for those who want to bet. But to tell you, it's hard to find those casinos that are successful in this niche, there have been trials of it in the past but almost no luck for most of them however, I wish you luck.