Actually, combining dealer actions and basic strategy can improve your chances of winning in Blackjack. By observing the dealer's actions and adjusting your strategy accordingly, you can make more informed decisions and reduce the house edge. Basic strategy provides a foundation for making optimal decisions based on your hand and the dealer's upcard, while considering the dealer's actions can help you adapt to specific situations and increase your chances of winning. This combined approach can help you make better decisions and improve your overall performance in the game.