A good game that doesnt require $

Its a simple game, but one that you can spend a lot of time on. The premise is simple. If your stats are higher than your opponent in 2 of 3 categories, you will win (with some variables). The key is to get gems. The best way to get gems is on the competition at the bottom of the multi-player (cant remember the name). Its a good game. Play it.

1111222/2 about Rival Knights