Doubling down in blackjack gives you the chance of elevating your original bet after you have been given your first two cards. Subsequently, you will only be able to get one extra card, your hand will be over, and you will have to wait for the croupier to show what they have. Blackjack is a very exciting way of earning money and spending a great time at the casino, and doubling down is a smart and profitable move that can increase your winnings in a second!