There is a way to control the market, but it is impossible to a starter player. The thing is you must have a lot of clintz. And by a lot I mean like 500000 ctz. (It might be a little less) Then you have to choose a card you want to control. (Rares and Uncommons and out of New Blood pack are the best option). Then you choose a price that you want to sell the cards and buy the cheaper ones all the time. One day people will start buying your cards for an insane price because they think... er ... they have tons of crazy thoughts, like "oh no, this card will probably go Cr, I must buy it for a ridiculous price". I've noticed market controls several times. The best I've seen was Jane Ramba. One day she was 700 ctz, the next she was 7000 ctz and all the sell are by one person (dont remember who). So if you still want to control market, start collecting Clintz. Btw, the controlers usually are french and I didnt notice any market controls recently.
I think new blood is the best gamble especially if the cards are probably going to become staples. you can start by checking out Skeelz cards like Tomas Chiara and invest in maybe 100 each when the price drops. once they leave new blood in 3 months and the prices rise...
W H A M ! ! !
you release them into the market and make a killing !
To start, choose price you want the card to be.
(try not to make the card new blood.)
Make the card a fairly cheep card, but a card people will want. (maybe, a average 2 star)
Buy all of the cards at the lowest market price, as you buy them, the market for the cards rises, and you pay a little more for each card you buy. Stop once the card reaches the price you desire, and try to buy any cards put out cheaper. After a while, you can start selling them for the price you chose, to stabilize your funds, and continue buying any cheaper cards. Check back every once in a while to make sure the price ain't dropping, and once people need the card, they will buy it, for your price. continue for a while, and other people will start selling it for your price too.
NOTE: Works best when you make the card raise only a little bit in price, it requires less initial funds, less diligence, and it works faster. This tactic CAN work with newblood cards, but you should definitely try to choose a card who's average price is likely to rise on its own, stock up on it, and let the market rise before you even get involved. And see if there are little of the card on the market, that can contribute to the ease of your control as well.
Problem is, this costs money. I cant really do it so well, i can only rise a price by around 50 clintz, and that takes a while.
Good luck to you.