
YIKES. I'm sure your first thought is "Well, it IS two free clues," but there are MUUUUUCH less expensive ways of getting clues. The XP cost is just the sewer icing on this giant cake of crap, built from the mound of curses you just dumped into your bag. This would be a fantastic card to add IF you're really diving into a curse-heavy build, but with that specific exception out of the way, it's reeeally not good.
This card costs an action to play, so right there it's already netting you no more than any other card that discovers an additional clue in an investigation attempt like Deduction, most Mystic investigative spells, Sharp Vision, those are just off the top of my head and either cost one XP OR a reasonable amount of resources for the use you get out of them (and that's not counting Deduction). But I hear you: testless clues are more valuable than you'd think on paper. There are plenty of ways to get testless clues (Working a Hunch, arguably "Look what I found!") that cost you a reasonable amount of resources while still completely bypassing the need for success. But this card is just 1 XP and 0 resources, right?......right?
No. Determining how bad this card is in normal play just boils down to understanding how expensive putting a curse token in the bag is, so let's compare this card to one I actually like: Faustian Bargain. Let's assume you play this on a 2 shroud location, costing the same as FB. FB gives you 5 resources to distribute among players, making it provide virtually the same number of resources as a Lvl. 2 Hot Streak, except 1.) you don't require the overhead of 5 resources, 2.) you can distribute to other players, and 3.) It's a Lvl. 0 card, all massive, massive boons (lol sorry, didn't mean this to veer into a FB review). The difference is that it adds two curse tokens, and with all things considered, I STILL hesitate and consult my friend before playing this card sometimes (I usually end up playing it) because curse tokens strengthen the chaos bag in a game that's already very unforgiving.
Stirring up Trouble gives you a very, very mild advantage over other clue-granting cards, and it costs 2 curse tokens AT A 2 SHROUD, a shroud that you'd likely rather just investigate yourself. When you get to shroud 4 or higher (or even 3 on harder difficulties), that's way too many curse tokens to even CONSIDER adding. I think........you could maaaaaybe argue using this on 1-2 shroud in expert because testless cards are......just really, REALLY good in expert, and you're kinda expecting to fail many of the tests there anyways, so 1-2 curse tokens could be passable in a bag with -7 and -8. Even on expert, though, it doesn't change the fact that there's going to be many tests where you're already struggling to succeed against the average token pull, only to be kicked down the stairs by a curse token. Personally, I'd be getting nervous even at 2.
I hope you've been noticing that I've been reviewing this card primarily at 2 shroud; I would never dream of playing it on a shroud higher than that. The only good use of this card is at, like a 5 shroud or something with Cryptic Grimoire, Tides of Fate, etc. in hand, and at that point, you're not planning on playing with those tokens in the bag for long. As far as paying the cost in curse tokens go, this card is way too rich for my blood.
tl;dr, if you were just scrolling through cards that might look interesting to add to your deck and didn't have a curse token-fueled plan in mind, PLEASE do your chaos bag a favor and skip RIGHT over this one.