Dealer bust cards in blackjack are cards that are better than average for the given hand, and when played, can give the player an instant win. Dealer bust cards in blackjack can come in any suit, but are most commonly Hearts and Spades.
When a player has a dealer bust card in their hand, they can either stand (put money into the pot) or hit (take money from the pot). The player is then eligible to win an instant prize of either a cash prize or a free round of blackjack.
There is no sure way to know when a dealer will bust, but there are some things that can help make the odds in your favor. For example, if you see that the dealer is often busting high cards (10 through Ace), it may be worth it to stand and try to hit on those hands instead of putting money into the pot.
Conversely, if you see that the dealer is often busting low cards (2 through 10), it may be worth it to put money into the pot on those hands. The key is to understand the tendencies of the dealer and use that information to your advantage.
Overall, dealer bust cards in blackjack can be a powerful tool for players looking to win money quickly. Just be aware of which hands are likely to bust and plan your strategy accordingly.