Sure, the other reviews are mostly focused on how this card works as an economy card, and I agree that using it to summon Dr. Milan Christopher makes it the equivalent of a fast Emergency Cache which I think is quite good, but I would like to focus my attention on a very important word in this card's ability: Investigate
This card is an investigate action - and one that lets you control the difficulty. Declare a Magnifying Glass and you are making a difficulty 0 Investigate check. "Okay, but why is that useful?" I hear you ask. "You've just paid a resource, a card, and an action to play a free, fast card!"
Yeah, that would be pretty dumb. But here's the thing. Let's say you're Rex Murphy and commit a Deduction. Now you just need a 2 (-4 or better) to pick up 3 clues from that action.
If you want to be even greedier, have your rogue buddy Double or Nothing. It's still difficulty 0, but now the Deduction offers 4 clues in an action. All sorts of silly shenanigans open up when you can Double or Nothing a difficulty 0 test such as Quick Thinking, but sadly not "Watch this!".
But this isn't just about the action compression, the best part is that you control the difficulty, even on a high shroud location, which could reach 5, or even 6 with an encounter card.
Still don't feel like you need this in a pure seeker? You'd rather just pay for Higher Education and Archaic Glyphs Understandable. This is a low enough level combo that it can still be used by secondary - or even tertiary seekers. Roland Banks can struggle to pick up a bunch of clues off a high shroud location without enemies to take advantage of. Even if you're still using Deduction, you succeed with a -2 to Unearth an Art Student and grab two clues.
Is it still a pretty finicky card? Definitely. Do I think you should auto-include it? Probably not. But open your mind to the possibilities, and keep an eye on this card in the future as more synergies become available. I expect this card to eventually be the center of some pretty silly combos.