IMMEDIATELY AFTER PAYMENT YOU WILL RECEIVE A KEY TO ACTIVATE ONE SET OF HEARTHSTONE CARDS.
One Battle.net account can activate no more than 5 keys
The HEARTHSTONE Booster pack key includes a set of 5 cards that drop randomly,
with guaranteed drop of 1 rare or better (epic or legendary) card.
Works in all regions! (This is a region-free product)
Enter the purchased activation key on the Use Code page https://eu.battle.net/account/management/claim-code.html
Note: To get a pack of cards, you need to install Hearthstone and get trained.