I found this game on my iPhone, then discovered it also had an Internet version of it. It's an awesome card game, where every card has an attack power an a destructive power (I don't know how else to explain this). Each user has 12 health points, and the goal is to either have more than the opponent, or knock his all out. All cards are part of a clan that gives it extra powers. Some characters also have a power of their own in addition to the clan's bonus. Seriously, give it a try, it's keeping me hooked. There's also a few different game modes and tournaments every 2 hours.
Link to Urban Rivals.
Edited, Apr 8th 2010 2:26pm by Ikkian