Players can initially choose from a selection of more than 130 cards, with 922 cards available in total for players to collect. New cards can be earned in several ways: through increasing the level of their heroes, winning them as prizes in the Arena, purchasing them from the store (using either real money or gold, an in-game currency), earning ranks in Ranked play, or from completing single-player adventures. Cards may be gained individually or in packs of 5.
Players can browse their cards in the Collection screen, and create custom decks to play with. The selection of cards for a deck is a substantial part of the strategic play of Hearthstone, with each deck's 30-card limit forcing players to make tough decisions and focus on their chosen strategy. Players can also disenchant unwanted cards to acquire Arcane Dust, a resource which can be used to craft powerful new cards.
Each card also comes in a golden form. Golden cards offer no gameplay advantage over non-golden cards, but feature special graphics and animations, bringing each card's art to life. Golden cards serve as prestige items, and are more expensive to craft than other cards.
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