u would need a saterllite image to go on the box but i dont know if the card would work
and as i said before the dbox2 has to be a saterllite version not the cable version
If you only wanted the free stuff then you wouldn't need a card, if you wanted to decode Sky then you'll need a valid card and the latests EMU's that support NDS encryption.
If you don't have a Sky card then you can card share with someone.