LOSE A BLACKJACK HAND: LOSE A FINGER

One of your hands is held flat on the table where everyone can see it, and your five fingers are your entire health bar.

• Lose, and the dealer takes a finger. 
• Win, and you will be granted some cash.

BUY ITEMS. USE THEM ON OTHER PLAYERS.

Because where is the fun if you can't mess up with other players?

• ZIPPO LIGHTER: burn the card an opponent was saving.
• CURSED RING: push it onto anyone's finger. When that finger goes, someone else bleeds with them.
• ROMEO'S RING & JULIETTE'S RING: two rings, two people, one shared fate. 
• THE DUCK: a gift that cannot be sold, cannot be removed, and eats one of their slots forever. You can squeak it, though.

BLACKJACK, WITH EXTRA STEPS

• THE CAGE: every third round a cage comes down over the table with items to buy. Spend what you won. You will need it.
  
• THE PIT: a row of face-up cards in the middle of the table. On your turn you may take one. So may everybody else.
• THE SLEEVE: a card you keep in your sleeves for whenever the time is right. Assuming nobody burns it first.