[Tyhm]

Important rule-we need a team of guys that are good at math to write up the fairness guidelines. Like rarity, power, etc: A card gets points equal to its rarity, from 0 (most common, ie land) to 100 (least common, ie Black Lotus). Attacks cost a lot of points, 1 damage is like 50 points, but a card gets an additional point for each MP point used, so you could have a common card that deals 1 damage for 50 MP+"tap", or an 50% uncommon that deals 1 damage for "tap". Health costs points too, 10 points for 1 health-to spawn a Bomy with 1 health, it takes 10 MP, but it does no damage. To spawn a Bomy that does 1 damage and has 1 health it would cost 60 MP at the most common level, so it would probably be a rarer card...say, 10% rarity for the "monsters". 20 points for attributes-flying, swimming, denimwalk, whatever.

If this is all confusing, just think D&D Character Creation. Making a card game is just like that. If Ghost Pirate wants his card to be a 0% rare 10/10 Flying with tap-deal 10 damage, he can't. He has to adhere to the formula.
Sound good? I'm starting to think we can seriously do this!