The player can sacrifice cards at the infernal pit for gold and wildcards. Whenever a card is sacrificed this way, it cannot be returned back. The player can also win a card at the infernal pit. If the player provides a number of sacrifices, their chance to obtain the premium card grows. However, the infernal pit does not offer hero cards. The infernal pit offers a new card every eight hours. Different rarities have different requirements to reach full chance. Basically, it is the gold value of the card x20.