soo ive got it now, played a bit its great so far. already got my hunter lvl 10. currently i want to get my rouge there tooo also im almost silver in ranked too.

so also i can tell now u cannot rlly buy content for real money which u cant get without it.
the only booster packs avaible are sold for 100 gold each (u get 10 gold for 3 wins and daily quests are rewardfull too.) u can buy greater amounts of packs for real money. but its not nessecary since u will only get more cards, but not better ones. (actually the chance is higher to have better cards as more u get, simple math.. but still..)