Precondition: 5 Coins in Pouch, Count Reuven's Treasure in hand with Profit [8], i.e. you have 8 Crimes in deck.
- Play Count Reuven's Treasure.
- Overprofit 4, hence you will have options between 4 Provision Crimes.
- Choose Eventide Plunder.
- Choose Sea Jackal from Eventide Plunder (not necessarily ideal).
- Spend twice with Sea Jackal.
Postcondition: 5 Coins in Pouch, 10 Power Sea Jackal, Count Reuven's Treasure on board with 4 Coins stored in it.
This results in 10 net points, with 1 Coin being received in the next 4 turns. And with the Jackpot leader, the number of coins in Count Reuven's Treasure can be increased even further without repurcussions, thus turning it into Novigrad's passive ability.
Source: https://www.reddit.com/r/gwent/comments/17p9ipy/illustrating_synergy_between_jackpot_and_count/