In Power Blackjack, all 9's and 10's are removed from the game. You can increase your bets and Double Down, Triple Down or Quadruple Down on any two initial cards, which is also possible after splitting.
Compared to standard blackjack, there are 64 less cards in the shoe which changes the probabilities of hitting a blackjack. You can also place four different side bets that offer additional chances to win, and offer higher possible payouts.