Must admit I'm struggling to think of many investigators who would want to take this card. It does look very tempting when you think about the potential action compression you can get from grabbing 3 clues for 1 action, but there are some pretty substantial drawbacks too. On the positive side, running three of these nets you 3 clues more than you could get from normal investigating, always assuming that you pass both of the skill tests. It can also be recurred with Resourceful two more times for a potential net gain of another 4 clues. Seven extra clues ? Sign me up. The issue though is that you're spending 7 resources to achieve this, so it's not exactly cheap, and in addition to that you're forced to use up 10% of the average deck solely for these cards, so there's an obvious opportunity cost involved. There are no skill pips on the card either, so the first one that you draw is a dead card in your hand that you need to find a way to discard. Wendy and Pete can both do that with ease, but they have base intellect of 3 and 2 respectively so they're unlikely to want to play this since they most likely need to boost the skill checks with other cards to ensure successfully investigating. Yorick obviously doesn't take it for the same reason, likewise Rita. I guess you could make a case for Calvin since most Calvin builds try to focus on getting horror up to 4 as soon as possible, but I still don't think this is a natural fit for him.
The standout of course is Patrice. She can guarantee seeing all 3 of them, has a ready-made way of getting them into the discard pile and has no issues with committing cards to the skill checks. She also has a larger deck size so the opportunity cost of having 3 of these is minimal. The lack of pips on the card itself is still a bummer for Patrice though, and she also has the problem that she needs to be on a location with multiple clues on the turn that she draws the card in order to get any tangible benefit from it, and if she doesn't have any book pips in her hand at the same time then she probably can't pass the test.
Off-class survivors who can take it include both Minh and Mandy. I suspect this is where it's most likely to find a home. High base intellect and the ability to pick and choose when you play it makes it a potentially powerful option for them, and in Mandy's case it should be pretty simple to find them all. That said though, there are better options available to seekers for getting multiple clues. A single copy of Archaic Glyphs would most likely net you more additional clues than you'll get from having 3 copies of this card in your deck, albeit at an xp cost.
I'm certainly going to try this card out in a few decks and see if I'm completely wrong, but as it stands I suspect it's going to fizzle.