This card can help any Rouge or off-class Rouge paired with a Guardin with a Machete to get their engaged with an enemy. Also Rouges have spare actions to do this instead of wasting precious Machete-chopping time for the Guardian, and they may get it easier to activate Pickpocketing when doing so.
At only 1 resource and 2XP, this upgrade to Wendy's Amulet looks like a terrific way to make her more reliable!
As a neat bonus, it can be included in non-Wendy decks that may lack reliable tutors, to dig out such as:
Grab two of them so that even if you don't pull the 1-of that you're looking for, there's a good chance you'll find a Backpack in your Backpack, so you can tutor after you tutor. (If you like that.)
Clearly a very situational card, it's good in scenarios where you know there'll be a lot of locations in play and preferably from the get-go.
I think this card will really shine in The Blob That Ate Everything; as long as you're not at an outer location you'll get the +2 and +2 pretty much all the time.
I'd like to take two copies of it in a Mandy Thompson search deck with Dr. Elli Horowitz and maybe the oft-forgotten Relic Hunter just in case. Assuming you have enough other sources of search as well it should be found pretty quickly, and getting +4 and for a base of 7 and 9 on a lot of locations is pretty nuts.
Location breakdown:
One extra cool thing about Stick to the Plan that nobody else seems to be mentioning here:
For Roland Banks, Zoey Samaras and Carolyn Fern - you can include one copy of Astounding Revelation in your deck. This will trigger when you do your initial search with Stick to the Plan, causing you to consistently start every scenario with 2 extra resources (and your deck is thinned by one extra card!). This is equivalent to having Another Day, Another Dollar, for free!
"Fool me once..." is an alright card if played fairly, for it purpose of cancelling a future encounter card - it comes cheaper than Ward of Protection (since you don't have to pay a horror), but costs an extra XP and has more stringent restrictions on when it can cancel a card. Other reviews give more in-depth descriptions of this.
However, there's an important (perhaps unintended) usage of this card: unlike most treachery-interaction cards, this one doesn't specify that it only applies to non-weakness treacheries, so you can use it to trap a weakness to avoid redrawing it when you reshuffle your deck.
Most Guardians don't really have the draw to take advantage of this, but this effect can be especially strong in Joe Diamond, who does have access to the tools needed to repeatedly draw his deck, and this can let you really easily facilitate infinite combos, even if you draw a particularly nasty weakness (such as Amnesia).