I did the entire Dunwich cycle with Minh Thi Phan. In eight scenarios, I drew this weakness nine times.
This is my favorite weakness in the game to date, as an amazing combination of theme and mechanics. It interacts beautifully with Minh Thi Phan's flow.
Minh Thi Phan is practically powered by card-draws. Literally any competitive deck of hers will have two copies of Guts and Perception, and probably Manual Dexterity and Overpower as well - to say nothing Resourceful, upgraded Lucky! and Cryptic Research once she's powered up a bit, and of course her very own Analytical Mind.
Two consequences ensue:
- drawing lots of cards is what makes her pick up The King in Yellow; and
- drawing lots of cards is what allows her to discard The King in Yellow.
Which is beautiful, because it means the King in Yellow is the reason Minh Thi Phan needs a lot of card-draw, but the high card-draw also means she's nearly guaranteed to draw it every scenario.
This means that The King has similar impact to other high-octane unique weaknesses like Rex's Curse, but where the Curse places a lot of tedious small roadblocks in your way, The King places one interesting giant roadblock. Really, it's like getting your own private miniboss to fight.
The other interesting thing about this is that you're obviously better off dispatching the King while also tackling a skill-test that somehow warrants six points of commitment. Upgraded Deduction is the most obvious candidate, but whatever you do you just know it's going to be impressive. Get ready to shout "ZHU LI! DO THE THING!"
(My alternative theory is that Min Thi Phan is secretly Batman and she's doing paranormal investigation to relax.)
That's assuming you don't autofail, of course, which can be so disastrous that it's practically a drinking story waiting to happen.
Obviously, this weakness is why Minh Thi Phan must have two copies of Unexpected Courage and Inquiring Mind, because how else is she supposed to reliably have six symbols to commit to a single skill-test? Rise to the Occasion is a dodgier proposition, because 6-difficulty Willpower and Intelligence tests are rare, and 4-difficulty Combat and Agility tests tend to involve doing things she should generally avoid, Batman-ness notwithstanding.
(For extra-fun thematically-appropriate headaches, get Drawing the Sign as your basic weakness, like I did! Hastur-obsessed much, Thi?)