You buy new crystals by paying actual , real money. In addition, there are a couple of things which IRL dollars can buy.
- Every other day, there is a pack “On Sale” on the homescreen, where you get a couple of devices, cards etc. None of us have paid for this. Might be worth it to you, but we saw no value. Also, we always get a little pissed of when something is “On Sale”, though it is never sold at ordinary price…
- In Black Box you can “Buy Stabilizer”, which is said to increase probability of getting better equipment using black box. Some of has bought this, but we are unsure whether it has given any result.