After all, the game will only provide two free boosters every two hours
And if so, must I pay its cost during the next turn
The number you'll want for each card type really depends on the kind of deck you're building, but a nice starting point is a 15 Pokmon, 15 Energy, and 30 Trainer split , and then you can work your way out from that
Trading or selling physical code cards for physical, real-world things is fine (as far as Im aware), but once youre in the digital world, you can only trade your cards or virtual items for other virtual things
Besides being a very pushed card, what sets it apart is that after it dies, it becomes an aura enchanting a forest, and you can get another 4/4 out of the deal