Lostorage Conflated WIXOSS

These shows are very similar. They are both deconstructions of magical girl genre, although Wixoss tends towards the card game genre. They are unique and both confront their stories in unexpected ways. I highly recommend both of them. 

While these two shows have many things in common when it comes to tone (though Wixoss is quite the bit darker) and setting, with a big modern city and dark magical elements, the main reason for this recommendation is the duality of Izaya (Durarara) and Satomi (Wixoss). Both characters serve as driving forces from behind the shadows in their shows, and have similar motivations and personalities. I think that, if you like one show specifically for that elemenent, you'll definitely like the other. 

Both involves individual in a game where the stakes were high and the it's even higher for the loser.