Just curious, Is flash object oriented?
Yes what you say about function calls is true, but how many cards with the same design and just different numbers do you want? Theres only a few elements that would benefit from more basic creatures, even ones with recycled abilities. Every sorcery and permanent would have to be dones from scratch, meaning that all we would really have left is weapons, shields and creatures to be easily made. Thats a pretty small selection.
My issue isn't that its a bad idea, its that the energy would be better used elsewhere. As for art, I'm a programmer, not an artist, I really don't know how long that would take.