Shift Tokens are effect tokens that can only be played before Draw or Stand actions. There are 16 unique shift tokens:

Free Draw – Avoid the draw fee this turn (draw a card without needing to pay one chip)
Refund – Retrieve 2 chips in play (Return 2 tokens to your pile, you can only use it when you have previously paid at least 1 chip this round)
Extra Refund – Retrieve 3 chips in play
General Tariff – Other players are taxed one chip (Other players are taxed one chip, as if buying a card)
Target Tariff – Target player is taxed 2 chips
Embargo – Next player must stand (It interferes with the next player’s plans for their turn)
Markdown – Set Sylop value to 0 until next reveal (Sylop would then only make a Sabacc Hand with another Sylop and not with any other number)
Immunity – Prevent Shift Token effects against you until next reveal
General Audit – Other players in stand are taxed 2 chips. (Players this turn who have chosen to stand must invest 2 chips)
Target Audit – Choose a player in Stand. They are taxed three chips.
Major Fraud – Set Impostor value to 6 until next reveal
Embezzlement – Take one chip from each player’s pot to your pot
Cook the Books – Inverts Sabacc ranks until the next reveal (6/6 Sabacc is the best)
Exhaustion – Choose a player. They must discard and draw a new hand.
Direct Transaction – Choose a player. Trade hands with them.
Prime Sabacc – Roll two dice. Pick one value as the new best sabacc.