There was a time where the concept of mobile based tie-ins was something that disgusted me. Actually, it would be fair to say there was a time when mobile gaming in general disgusted me. However, I have come around on the concept and there's a collection of games on my smartphone that I play daily.
For a while, one of those games was the Injustice Mobile game. It looked good and because I'm a fan of collecting, the card-based character collection appealed to me.