Has anyone here ever played Mulpile Action Blackjack?

The 6 of us are planning to play Multiple Action Blackjack. I know a little about it and I understand and you must have 21 (7-7-7) to win and it invovles making 2 or 3 bet's on one hand. I also understand that a deck of card's is 54 in total which it include's 2 Jokers. However, the 2 Jokers are not used, which make's the deck 52.