I like most of the new tarot cards (Ace of Rods being the only exception). Advantages:

• Provides +1 , which is the most important stat to gather clues and win the game
• Seeker assets are rather cheap, so 3 ressources should be ok
• Free to play if in opening hand (mulligan increases your chance of drawing it)
• Does not conflict with existing assets with the new tarot slot
• Is not an item, so it's immune to many treacheries that target these

Disadvantages

• Second copy is a dead card, as players have only one tarot slot and it has no icons to commit
• Conflicts with other tarot cards, if the investigator has access to more than one faction at level 1+
• Ability to play this for free may motivate a player to mulligan important cards, like weapon assets

One of the good tarots.

Compared to Dr. Milan Christopher and Alice Luxley costing 4 resources, paying 3 for +1 is very feasible. The fact that the card is worth the cost, even if you dont luck out and get it in the opening hand, that's a good tarot.

You can swap from Dr. Milan Christopher to Death • XIII to leave your ally slot free for other characters, for example Mr. "Rook", Leo De Luca, Beat Cop.

Obviously, you can stack Death • XIII and Dr. Milan Christopher, especially seeing as how Dr. Milan Christopher can pay for Death • XIII. This may or may not be too expensive in many decks, especially flex decks that are supposed to fight and clue even handedly.