I'd suggest being much clearer in your branding and messaging. If you're making a strategy guide website, you should reflect that in your page title, logo, and domain name choice. Right now, it looks like you're trying to masquerade as an official site for the game (or even a fishing site - a broken link to Google Play and a link to the Chrome Web Store don't help here). People who don't know about the recent release of this game might even think that this is some kind of fan game.

If your goal is to create a successful information site, your next step would be to analyze existing projects. Do you offer something unique? Something better? Any killer features? I don't think "interactive card simulator" could be it - why would anyone want to simulate drawing cards instead of actually doing it for free in a free game and keeping them for gameplay purposes?

Last but not least, be honest in your advertising - don't claim your application is open source if it's not.