rigid dawn
The jokers would be named after gods in the greek pantheon and would give planet cards and tarot cards based on their namesakes. However, the catch would be that they would require a "sacrifice" of a specified amount of chips.
Examples:
Zeus: When final hand in the round is played, Takes 20 chips from played hand and creates Judgement and a Randomly Enhanced King
Apollo: When final hand in the round is played, Takes 10 chips from played hand and creates The Sun and Chariot
Artemis: When final hand in the round is played, Takes 10 chips from played hand and creates a Randomly Enhanced Queen and The Hanged Man
Athena: When final hand in the round is played, Takes 15 chips from played hand and creates The High Priestess and a random Planet Card
Dionysus: When final hand in the round is played, Takes 5 chips from played hand and turns 2 random cards held in hand into Wild Cards