Allow me to offer a thought exercise to help you consider this card. In case you weren't aware, if you ever can't draw, you take one horror to reshuffle.

Think about what would be different if this card said "discard the BOTTOM 10 cards of your deck." Doesn't feel as bad, does it? Statistically, this is the exact same effect until your 16th card draw, which for most games is very late anyways. Sure, it's a bummer to see your signature card in the discard, but is that actually different than that card being in the last 10 of your deck normally? Where this gets worse: cards that search your deck like Research Librarian or Old Book of Lore. Where this obviously gets better: Scavenging or any of the many discard searches survivors have.

The biggest benefit here other than scavenging items is that of information.

This and Mysterious Raven need to be reconsidered with Charlie Kane. The biggest knock against this card (takes up an Ally slot for a one-time use) is not an issue, as Charlie has 4 slots. And unlike other investigators, Charlie can still use Art Student after it's played as a +2 boost. Furthermore, there is no opportunity cost for doing so—unlike say Lola Santiago where if you exhaust her for the boost, you can't use her ability.

The other consideration is that Art Student and Raven are cheap. As much as I'd like to dream of an all-star Gené/Grete/Lola/Peter lineup, that's a lot of resources and Charlie's going to need some cheap allies in his deck to balance (and shield) the more expensive ones. For that purpose, an ally that automatically picks up a clue when played isn't bad. And nothing says "Politician" more than a person who uses interns to do his dirty work (and as shields against monsters attacking him).

Just a quick heads up from the rules for visibility:

(Added in FAQ, section 'Game Play', point 1.18) If 1 or more cards are forcibly removed from an investigator’s deck and returned to the collection (such as when a card is exiled, or when a campaign effect forces an investigator to remove cards from their deck), that investigator must purchase cards so that a legal deck size is maintained. When purchasing cards in this manner, that investigator may purchase level 0 cards at 0 experience cost until a legal deck size is reached.

This rule also applies if an effect alters an investigator’s deck size, deckbuilding restrictions, or deckbuilding options such that 1 or more cards must be removed from or added to their deck as a result.

"Well now, we had a deal. You get to sing songs sweeter than ice tea on a summers day and I...I get you."

A weakness that is true to the character, a deal that seems amazing (you get Mystifying Song) that turns out to be not even close the price of purchase. Mystifying song, in a vacuum is an extremely powerful signature card, especially paired with arcane initiate but by god, is Baron a DEVASTATING weakness.

I would be so bold as too say that he has to be one of if not the WORST personal weaknesses amongst investigators to the point that he has played a large role in Marie's lack of play-ability. The jankery you need to include and draw in your deck to handle this weakness is absurd. If your lucky (scenario pending) you can handle this in the first 3-4 turns, if not...You're screwed.

The selling point of this boy bad is that seekers can also take it. For mystics, Norman Withers (yes, he is a true mystics) especially likes this card. As it allows Norman to use his high intellect instead of using his slightly lower will power to investigate. Pairing Divination with True Magick, a card which Norman can and should take, enable him to nab 3 clues in an action each round and sprint through the scenario quickly. This simple strategy also off-set the main limitation of Divination, which is that it only had 6 charges to nab 6 clues.