Tarot cards

Where to play
In most cities where nobles are. Possibly in all starting cities (please confirm this, and edit this appropriately).

How to play
You click on the tarot card button when speaking to a noble and you will have to pay 1000 D for one card. There are 5 cards to choose from, all of which are turned down.

The cards
The noble tells you that you are supposed to find out what the cards do by your own, I believe they helps with eg. sailing, trading and such other skills we use (unconfirmed).

As of yet I have found that: