Interesting,...
But, too much details are left out, and where would anyone play?
I think that everyone should start there deck with only 1 card, theirs, and some money. With the money you can buy other cards
(obviously a 3 on all sides is cheaper than a 4 on all sides)
and when you win a match u gain this play money, which someone will have to keep track of( so no one cheats to get say: an extra 30 dollars) and when you lose a match you lose money.
Also u can trade cards with money(say, I'll give u a semi-rare AJ2F for your common Piccolo and $50.) I have some oter ideas too , but im a slow typer(one step above hunt n peck) and it would take forevar.