Black Jack

At the beginning of your upkeep, pay {x}. All players who want to participate in Black Jack, must also pay an {x} value equal to yours. All players who have payed for Black Jack, reveal the top two cards
of their library. They are then able to hit or stand (hit means reveal another card, stand means you're done revealing). Whoever gets closest to a total converted mana cost of those revealed cards equal to
21 without going over gets {x} treasure tokens.

"Hit me baby one more time!" - Britne