meaning: placing a card under a joker in order to influence an effect. it stays there, even past the round. if another card would be stacked under a joker while there is already one, then the previous card returns to the hand or Deck. if a joker that has a stacked card is destroyed or sold, then the card is discarded if in a blind, or returns to the deck if not in a blind.
Examples of usage:
Ace in the Sleeve
Uncommon Joker
If exactly 1 card is played, stack it to this Joker after scoring finishes.
Display Case
Rare Joker
Stacks 1 random card in your full Deck at the start of each Ante. X1.5 Mult if a card with the stacked Suit is scored.