Hi freshdeus, My English is not so good either,
I am working on a system, that lets you just upload the card suits, and the face cards. The cards are assembled in real time and the entire package is under 500k. I made a similar system in the Unity Store, and it has sold quite a few copies. DUTOIT gave me the idea a few years ago, and I have profited from it greatly.
If you are interested in something like this for your game send me a Personal message.
All you need to do is worry about the actual game. The cards will all be taken care of. The theme, and the card styles can all be changed in real time. The users can even make their own custom decks.
Entire system has 6 Sprites!!!! Perfect for your celphone project!