I'm down. I always wanted to make my own pokemon cards when I was a kid, so you should make it where people can make their own monster with paint and stuff. You should make it where they can level up, but they start low. And if they do good with the card, the game uses it to fight other people and allows them to get it (not from you, just a copy). So people can make their own card that ends up being used by everyone.
How about an online DVC trading card maker?
FinShaggy: 200 Healthpoints, 120 Attack, Special Ability Troll Attack, extra 100 damage to trololols!
Unthinkingbit Lv. X: 250 HP, 130 Attack
Devcoin (Special card): add 100 attack to your card!